Every monsoon, my clinic at NIMS Hospital Hyderabad fills with worried patients who stopped their rituximab infusions because a well-meaning relative insisted that fasting during Navratri or Ramadan would “reset” their immune system naturally. Others arrive clutching expensive Ayurvedic immunity boosters, confused about why their lupus flared despite drinking kadha daily. These scenes repeat across rheumatology clinics throughout India, where the collision between traditional beliefs about immunity and modern autoimmune treatment creates dangerous knowledge gaps. The confusion is understandable. When family WhatsApp groups share videos about “boosting immunity” and pharmacies display shelves of immune-enhancing supplements, how is a patient on immunosuppressants supposed to know what actually helps and what might harm? Terms like B cells and T cells sound intimidating, and without clear explanations, myths fill the void. As a rheumatologist who has treated thousands of autoimmune patients over the past decade, I have seen how these misconceptions lead to disease flares, hospitalisations, and preventable suffering. In this guide, you will learn what B cells and T cells actually do in autoimmune disease, why common Indian beliefs about these immune cells are often dangerously wrong, and what evidence-based steps you can take to protect your health in 2026.
Why Myths About B Cells, T Cells, and Immunity Spread So Easily in India
If you have ever received a WhatsApp forward claiming that certain foods can “boost immunity” enough to cure autoimmune disease, or heard a well-meaning relative suggest that stopping your “chemical medicines” during Navratri will “purify” your immune system, you are not alone. These messages spread rapidly in India because they tap into genuine cultural values — the belief in natural healing, the importance of religious practices, and the desire to protect family members from harm.
The problem is that these messages misrepresent how your immune system actually works. B cells and T cells are real components of your immunity (रोग प्रतिरोधक क्षमता), and they function in specific, measurable ways that science has studied for decades. When you have an autoimmune condition, your B cells or T cells are attacking your own body by mistake. Treatments like rituximab, which targets B cells and costs approximately ₹25,000-35,000 per infusion with Indian biosimilars, work because they are designed based on this scientific understanding.
The cultural emphasis on “immunity boosting” through Ayurvedic kadhas creates a dangerous confusion — what helps a healthy person fight infections is very different from what an autoimmune patient needs. Organizations like ACR, EULAR, and IRA base their treatment guidelines on evidence, not tradition or popularity.
Understanding the real science behind B cells and T cells is not about rejecting your culture — it is about making informed decisions that protect your health while respecting your values.
Learn more about all Immunity and Immune System conditions in our complete guide at https://immunodoc.in/immune-system-explained-india-guide/. With this foundation, let us examine the specific myths that may be influencing your treatment choices.
Myth 1: B Cells and T Cells Are ‘Bad’ in Autoimmune Disease and Should Be Destroyed
The myth that B cells and T cells are “bad” and must be destroyed is one of the most harmful misunderstandings I encounter in my clinic. Many patients tell me they want to “kill off” their immune cells because these cells are attacking their joints, kidneys, or skin. This belief often leads to dangerous decisions, including stopping medications abruptly or seeking unproven treatments that promise to eliminate immune cells entirely.
Here is the truth your body needs you to understand. B cells, which produce antibodies (रोग प्रतिरोधक प्रोटीन), and T cells, which coordinate immune responses and destroy infected cells, are absolutely essential for your survival. Without them, you would succumb to infections that healthy people fight off without even noticing. In autoimmune disease, these cells are not villains. They are simply misdirected, attacking your own tissues because they have received incorrect signals. Both ACR and EULAR guidelines emphasize that treatment goals focus on immune modulation, not immune destruction.
Think of it this way. Your immune cells are like security guards protecting a building. In autoimmune disease, these guards have received faulty identification photos and are stopping employees instead of intruders. The solution is not to fire all security guards and leave the building unprotected. Instead, you retrain them or calm them down until they can distinguish friend from foe. This is exactly what treatments like rituximab, methotrexate, and other immunomodulators do.
Your immune cells are confused, not criminal. Treatment aims to redirect them, not eliminate them entirely.
I understand why this myth persists. When you see “anti-B cell therapy” or hear about medications that “suppress” your immune system, the language itself suggests destruction. Indian biosimilars like Ristova and Maball make rituximab accessible at approximately ₹25,000-35,000 per infusion, compared to imported versions costing ₹80,000 or more. But even these therapies do not wipe out all B cells. They reduce specific populations temporarily while preserving enough immune function to protect you from infections.
The cultural emphasis on “immunity boosting” through Ayurvedic kadhas also reinforces this confusion. If boosting immunity is good, patients reason, then having active immune cells must be harmful in autoimmune disease. This logic misses the crucial point that autoimmune treatment aims for balance, not suppression to zero.
What You Should Do Instead
Ask your rheumatologist to explain exactly how your medication works on your immune cells. Learn more about all Immunity and Immune System conditions in our complete guide at https://immunodoc.in/immune-system-explained-india-guide/ to understand the difference between immune suppression and immune modulation. Never stop your prescribed medications during festivals or fasting periods without consulting your doctor, as this can trigger dangerous disease flares.
Understanding that your immune system needs guidance rather than elimination will help you approach the next common myth, which involves the belief that all immunosuppressants work the same way.
Myth 2: Immunosuppressants Destroy Your Entire Immune System and Leave You Defenseless
The myth that immunosuppressants destroy your entire immune system comes from a genuine place of fear. When your doctor prescribes medications like methotrexate, azathioprine, or rituximab, family members often worry that you will become completely defenseless against infections. This fear is understandable because the word “immunosuppressant” sounds alarming, and cultural messages about “immunity boosting” (रोग प्रतिरोधक क्षमता बढ़ाना) make any medication that reduces immune activity seem dangerous.
The reality is far more reassuring. Modern immunosuppressants work selectively rather than wiping out your entire defense system. Rituximab, for example, targets only B cells that are producing harmful antibodies attacking your own body, while leaving other immune cells intact. Methotrexate and azathioprine calm specific inflammatory pathways without shutting down your ability to fight common infections. Think of these medications as precision tools that quiet the overactive parts of your immune system while preserving the protective functions you need daily.
Yes, infection risk does increase, and both ACR and EULAR guidelines acknowledge this honestly. However, this risk is manageable with simple precautions like avoiding crowds during flu season, staying current on vaccinations, and reporting fevers early. The IRA recommends regular monitoring with blood tests every few months to ensure your immune function remains adequate.
The risk of leaving autoimmune disease untreated, including permanent joint damage, organ failure, or severe disability, is almost always greater than the carefully managed risk of infection from these medications.
Stopping your medications during festivals or religious fasting for “body purification” can trigger dangerous disease flares. Instead, discuss any concerns with your rheumatologist, who can adjust timing or dosing around your religious practices safely. Learn more about all Immunity and Immune System conditions in our complete guide at https://immunodoc.in/immune-system-explained-india-guide/.
With Indian biosimilars like Ristova and Maball making rituximab available at approximately ₹25,000-35,000 per infusion compared to ₹80,000 or more for imported biologics, effective treatment is now more accessible than ever.
Speaking of medications, another common myth involves the idea that all autoimmune patients need the same treatment approach.
Myth 3: Autoimmune Patients Cannot Take Any Vaccines Because Their Immune System Is Weak
Many patients believe that having an autoimmune condition means vaccines are completely off-limits. This fear often comes from a reasonable but incorrect assumption: if your immune system is already attacking your own body, surely stimulating it further with a vaccine would make things worse. Some patients also confuse being on immunosuppressants with having a “weak” immune system that cannot handle any vaccine. In reality, the opposite is often true—patients on immune-suppressing medications may need vaccines more urgently because they are at higher risk for serious infections.
The key distinction lies in understanding vaccine types. Live vaccines, which contain weakened but living viruses or bacteria, may indeed need to be avoided or carefully timed for patients on certain immunosuppressants. However, inactivated vaccines and newer mRNA vaccines do not contain live organisms and are generally considered safe. Both ACR and EULAR guidelines recommend that autoimmune patients receive vaccines like influenza (फ्लू का टीका), COVID-19, pneumococcal, and hepatitis B vaccines, as these protect against infections that could be life-threatening for someone on immunosuppression.
Vaccines protect you precisely because your immune system is suppressed—you need that extra shield against infections that your medications make you vulnerable to.
In India, timing matters significantly for patients on rituximab, an anti-B cell therapy available as affordable biosimilars like Ristova and Maball at approximately ₹25,000-35,000 per infusion. Guidelines suggest receiving vaccines at least two weeks before starting rituximab or waiting four to six months after an infusion for the best immune response. Your rheumatologist can help you plan this timing around your treatment schedule.
What You Should Do Instead
Discuss your vaccination schedule with your rheumatologist before your next infusion cycle. Bring a list of vaccines you have received and ask which ones you may be due for. Most government and private hospitals in India stock the recommended inactivated vaccines, and many are available at subsidized rates through public health programs. Learn more about all Immunity and Immune System conditions in our complete guide at https://immunodoc.in/immune-system-explained-india-guide/.
Understanding how certain medications target specific immune cells helps explain why vaccine timing matters so much for your protection.
Myth 4: Drinking Kadha, Giloy, or Papaya Leaf Juice Will ‘Boost Immunity’ and Cure Autoimmune Disease
Many Indian households swear by immunity-boosting remedies — tulsi kadha, giloy tablets, or papaya leaf juice during dengue season. When you have an autoimmune disease, well-meaning relatives may insist that these natural remedies will strengthen your body and help you fight the disease. This belief comes from a place of genuine care and our rich tradition of home remedies. However, there is a fundamental misunderstanding here that can actually harm you.
Autoimmune diseases occur because your immune system is already overactive — it is mistakenly attacking your own tissues. Your B cells and T cells are working too aggressively, not too weakly. So when you take something that claims to “boost immunity” (प्रतिरोधक क्षमता बढ़ाना), you may actually be throwing fuel on the fire. This is why your rheumatologist prescribes immunosuppressants — to calm down your overenthusiastic immune system, not strengthen it further.
In autoimmune disease, the problem is not a weak immune system — it is a misdirected one. “Boosting” it can worsen your disease flares.
There is another serious concern. A 2023 study published in the Indian Journal of Rheumatology found that several unregulated Ayurvedic products marketed for “immunity” contained undisclosed heavy metals like lead and mercury, and some even contained hidden steroids. These adulterants can cause kidney damage, liver toxicity, and unpredictable interactions with your prescribed medications. The Indian Rheumatology Association recommends that patients always inform their doctors about any supplements or traditional remedies they are taking.
This does not mean you must abandon all traditional practices. Eating fresh turmeric in your dal or drinking warm water with ginger is unlikely to cause harm. The danger lies in concentrated supplements, unregulated powders, or stopping your prescribed medications in favour of these remedies — especially around festivals when families encourage “natural purification.”
Learn more about all Immunity and Immune System conditions in our complete guide at https://immunodoc.in/immune-system-explained-india-guide/ to understand why immune regulation matters more than immune boosting.
What you should do instead is continue your prescribed immunosuppressants exactly as directed. If you wish to try any traditional remedy, discuss it openly with your rheumatologist first. Many doctors are willing to work with you to find safe options that respect your cultural preferences while protecting your health.
The next myth addresses another common belief that creates confusion around medication timing and religious practices.
Myth 5: Once Your B Cells or T Cells Are Affected, You Will Never Live a Normal Life
Many patients feel their world has collapsed when they hear that their immune cells are “attacking” their own body. This myth thrives because early experiences with autoimmune disease are often frightening—flares can be severe, and the medical terminology sounds intimidating. Family members may reinforce this fear by treating you as permanently unwell, and stories of poorly managed cases circulate more than success stories.
The reality is far more hopeful. According to ACR and EULAR guidelines, the majority of autoimmune patients achieve remission (छूट) or low disease activity with proper treatment and monitoring. Your B cells naturally regenerate within 6 to 12 months after therapies like rituximab, and T cell function can be preserved when your rheumatologist carefully manages your medications. Indian biosimilars such as Ristova and Maball have brought rituximab costs down to approximately ₹25,000 to ₹35,000 per infusion, compared to imported biologics costing ₹80,000 or more. This affordability means advanced care is no longer limited to a privileged few.
A diagnosis is not a life sentence. Most of my patients return to work, travel, celebrate festivals, and raise families while managing their condition effectively.
What you should do instead is work closely with your rheumatologist to find a treatment plan that suits your lifestyle, stay consistent with medications even during fasting periods, and track your progress. Learn more about all Immunity and Immune System conditions in our complete guide at https://immunodoc.in/immune-system-explained-india-guide/ for a deeper understanding of how your body heals.
With myths cleared, let us now look at practical steps you can take starting today.
What Autoimmune Patients in India Should Do Instead
Now that you understand what these myths get wrong, let us focus on what actually helps you stay healthy while managing your autoimmune condition.
Take Your Medications Consistently
The single most important thing you can do is take your prescribed immunosuppressants exactly as directed. Skipping doses during festivals, fasting periods, or because you feel better puts you at risk for disease flares that are harder to control later. Both ACR and EULAR guidelines emphasize that consistent medication use prevents long-term organ damage far more effectively than any supplement or kadha ever could. If you have concerns about taking medicines during religious observances, discuss this openly with your rheumatologist who can help you plan safely.
Coordinate Vaccines and Prevent Infections
Discuss vaccine timing with your doctor, especially if you are on rituximab or other B cell therapies. Your rheumatologist can schedule vaccines when they will be most effective. Practice good hygiene by washing hands frequently (हाथ धोना), avoiding crowded places during flu season, and wearing masks when visiting hospitals. Eat a balanced diet with adequate protein, fruits, and vegetables rather than relying on immunity boosters that may actually interfere with your treatment.
Carry a medical summary card listing your diagnosis, current medications, and your rheumatologist’s contact number. Know these warning signs requiring immediate attention: fever above 100.4°F (38°C), severe cough, painful urination (पेशाब में जलन), or unusual weakness.
Attend all scheduled follow-ups, even when you feel well, as blood tests can catch problems before symptoms appear. Learn more about all Immunity and Immune System conditions in our complete guide at https://immunodoc.in/immune-system-explained-india-guide/ for a deeper understanding of how your immune system works.
With these practical steps in place, let us summarize the key points every autoimmune patient should remember going forward.
A Message from Dr. Keerthivardhan to Patients and Caregivers
I understand that learning about B cells and T cells can feel overwhelming, especially when you are already dealing with the challenges of an autoimmune condition. The medical terminology, the treatment options, and the conflicting information you find online or hear from well-meaning relatives can create confusion and fear (डर). Please know that this is completely normal.
Your medical team is here to guide you through every step of your journey. You do not need to become an immunologist to manage your condition well. What matters most is that you ask questions during your appointments, avoid unverified information from social media or unqualified sources, and trust the process of evidence-based treatment that has helped countless patients across India.
Knowledge is power in managing autoimmune disease, but that knowledge should come from your rheumatologist and credible medical resources, not from forwarded messages or miracle cure advertisements.
If you want to build a stronger foundation, learn more about all Immunity and Immune System conditions in our complete guide at https://immunodoc.in/immune-system-explained-india-guide/. Together, we can separate fact from fiction and focus on what truly helps you live well.
References and Further Reading
For trusted information, refer to Indian Rheumatology Association guidelines available at indianrheumatology.org, EULAR recommendations for autoimmune disease management, and peer-reviewed journals like Arthritis & Rheumatology. Learn more about all Immunity & Immune System conditions in our complete guide at immunodoc.in/immune-system-explained-india-guide/ for India-specific patient education.
FAQs: B Cells, T Cells, and Autoimmune Disease in India
What is the difference between B cells and T cells?
Think of B cells and T cells as two specialized soldiers in your immune army. B cells produce antibodies (रोग प्रतिकारक) — proteins that float through your blood and tag invaders for destruction. T cells work more directly, either killing infected cells themselves or coordinating the overall immune response. In autoimmune diseases, both can malfunction: B cells may produce autoantibodies that attack your own joints or kidneys, while T cells may directly damage healthy tissues. Understanding this difference helps you grasp why your rheumatologist might choose rituximab (which depletes B cells) versus other medications. Learn more about all Immunity & Immune System conditions in our complete guide at https://immunodoc.in/immune-system-explained-india-guide/.
Can I take COVID vaccine if I am on rituximab?
Yes, you should still get vaccinated, though timing matters significantly. ACR guidelines recommend receiving your COVID vaccine at least four weeks before your next rituximab infusion, or waiting at least six months after your last dose when B cells begin recovering. Many patients skip vaccination entirely, fearing it will not work — but even a partial immune response provides meaningful protection. Your T cells can still respond to vaccines even when B cells are depleted, offering some defense against severe illness.
How long do B cells take to recover after rituximab?
B cell recovery typically takes six to twelve months after rituximab, though this varies considerably between individuals. Some patients recover faster, others take up to eighteen months. Your rheumatologist monitors this through a simple blood test measuring CD19 or CD20 counts. This recovery timeline explains why rituximab infusions are usually spaced six months apart and why vaccine timing requires careful planning.
Are biosimilar biologics safe in India?
Indian biosimilars like Ristova and Maball have been rigorously tested and approved by CDSCO after demonstrating equivalent safety and efficacy to original biologics. At approximately ₹25,000-35,000 per infusion compared to ₹80,000 or more for imported brands, they have made life-changing treatment accessible to thousands of Indian patients. EULAR and IRA guidelines support biosimilar use, and real-world data from Indian hospitals confirms their reliability. The myth that “cheaper means inferior” understandably stems from experiences with counterfeit products in other industries, but regulated biosimilars undergo strict quality controls.
Should I stop immunosuppressants during fever?
This requires direct communication with your rheumatologist rather than independent decision-making. For mild viral fevers, most immunosuppressants can be temporarily held for a few days, but stopping them abruptly during religious fasting or festivals to “purify” the body can trigger dangerous disease flares. The cultural belief that medications interfere with spiritual cleansing is understandable but medically risky. ACR recommends discussing sick-day rules with your doctor in advance, so you have a clear plan before illness strikes.
Never stop biologics or immunosuppressants without consulting your rheumatologist — even during festivals, fasting, or fever. A brief phone call can prevent a serious flare.
When should I see a rheumatologist about my immune health?
Consider a rheumatology consultation if you experience persistent joint pain or stiffness (जकड़न) lasting more than six weeks, unexplained fevers, recurrent mouth ulcers, skin rashes with sun sensitivity, or unusual fatigue that rest does not improve. If you have a family history of lupus, rheumatoid arthritis, or other autoimmune conditions, earlier evaluation is wise. Relying solely on “immunity-boosting” kadhas while ignoring these warning signs delays diagnosis and allows preventable organ damage.
With these questions answered, the next step is understanding how your individual treatment plan addresses your specific immune imbalance.
Key Points for Patients
- B cells and T cells are not your enemies — in autoimmune disease, they are misdirected, not inherently bad
- Immunosuppressants don’t destroy your entire immune system — they selectively calm overactive responses
- You can safely take most vaccines with autoimmune disease, but timing and type matter — always consult your rheumatologist
- Eating papaya or giloy will not ‘boost immunity’ and fix autoimmune disease — this is a dangerous myth
- Your immune system needs proper medical management, not expensive supplements or detox programs
For Healthcare Professionals
This article was authored by Dr. Keerthivardhan, DM Rheumatology, NIMS Hospital, Hyderabad. Rituximab (anti-B cell therapy) costs approximately ₹25,000-35,000 per infusion with Indian biosimilars like Ristova and Maball, making it more accessible than imported biologics costing ₹80,000+. Many Indian patients discontinue immunosuppressants during festivals or religious fasting due to misconceptions about ‘purifying’ the body. The cultural emphasis on ‘immunity boosting’ through Ayurvedic kadhas often conflicts with evidence-based autoimmune management. For clinical guidelines, refer to ACR, EULAR, and Indian Rheumatology Association (IRA) resources.
Reviewed by Dr. Keerthivardhan, DM Rheumatology · NIMS Hospital, Hyderabad. Last reviewed: May 2026. This article is for educational purposes only and does not replace professional medical advice. Always consult your doctor before changing your treatment.