Hyderabad: The Deadly Pro Inflammatory cells causing more Allergies and autoimmune disorders are up in arms in a more aggravated attacking mode, Months or even years, after recovering from COVID-19, many people are facing an unexpected new problem: allergies they never had before.
From sudden reactions to foods and dust to new-onset asthma and persistent sneezing, these symptoms are increasingly being linked to Long COVID, a condition where health issues linger long after the initial infection has passed.
“We are increasingly seeing patients develop new-onset allergies, asthma, and immune disturbances months after COVID-19. This is not a coincidence—Long COVID appears to keep the immune system in a persistently activated state, making it overreact to otherwise harmless triggers,” says Dr. Vyakarnam Nageshwar, pulmonologist, allergist, and immunologist.
What Is Long COVID? Post COVID Condition Causing New Allergies and Asthma in Hyderabad Patients
Long COVID, also known as post-COVID condition, refers to a wide range of symptoms that continue for weeks or months after the virus is gone. These can include fatigue, brain fog, breathlessness, joint pain, and heart-related issues.
Now, Allergy experts are adding new or worsening allergies to that list.
New Allergy Development After COVID Infection: Risk of increased Asthma Attacks, Risk of Allergic Rhinitis Suffering and Increased Skin Allergy Worsening
Recent studies and clinical observations suggest two important trends:
A) People who already had allergies (like asthma or hay fever) may be more likely to develop Long COVID.
B) COVID-19 itself may trigger new allergies in people who never had them before
In some studies, the risk of developing asthma after COVID infection has been reported to more than double. Allergic rhinitis (hay fever) and skin reactions are also being seen more frequently like never before.
Why Long COVID Causes Allergies: Immune System Overreaction, Inflammation and Cytokine Activation Explained
Researchers believe COVID-19 may leave the immune system in a confused or overactive or Hyperactive state. Here’s what current evidence suggests:
Persistent Inflammation After COVID: IL-6, TNF-alpha and Cytokine Activation Leading to Aggravated Allergy Symptoms
Even after recovery, the body may continue producing inflammatory signals. Studies have consistently found elevated levels of immune molecules like:
IL-6
TNF-alpha
IL-1 beta.
This is a cytokine persistent Activation seen in severe COVID cases. It’s a chronic, low-level immune activation that can last for months and disrupt normal immune balance.
Immune Dysregulation After COVID: How T Cells and B Cells Trigger New Allergies and Asthma
COVID-19 can alter how immune cells behave, including the most protective T-cells and B-cells. This may shift the immune system toward an “allergy-prone” mode, making it overreact to harmless substances like pollen or certain foods. Damage to lung airway/ air pipes linings may also release “alarm signals” that trigger allergic inflammation like Asthma.
Gut Microbiome Imbalance After COVID: Role of Gut Dysbiosis in Allergy Development and Immune Disorders
The gut plays a major role in regulating immunity. Some studies suggest COVID-19 may disrupt gut bacteria (a condition called Gut dysbiosis), which could contribute to ongoing immune imbalance, observed clinically in many patients.
Mast Cell Activation in Long COVID: Cause of Hives, Breathing Difficulty and Allergy Symptoms
Mast cells are key players in allergic reactions, releasing histamine and other chemicals. cause of Long COVID, many symptoms, such as:
hives
flushing
breathing difficulty
brain fog
overlap with mast cell activity. Scientists consider this a possible contributor to aggravated immune cells inflammatory pattern.
Long COVID Allergy Causes: Viral Persistence, Autoimmune Response, Gut Changes and Blood Vessel Dysfunction
Rather than a single explanation, experts now believe Long COVID involves a network of interacting factors, including:
- Persistent viral fragments in the body
- Immune system overactivation
- Gut microbiome disruption
- Autoimmune responses
- Blood vessel (endothelial) dysfunction
Who Is at Risk of New Allergies After COVID? High-Risk Patients Who Need Allergy Testing in Hyderabad
Patients with strong history of any kind of allergic suffering or parents having allergies or autoimmune conditions are a call for alarm and need observation & study.
Routine presentation at clinics:
- New food sensitivities
- Persistent sneezing or nasal congestion
- Skin rashes or hives
- Wheezing or breathing difficulty
Even people with mild COVID infections, who do not sometimes recognize their infection state can develop these issues.
Check the video: Post-Covid | Dr. Vyakaranam Nageshwar | Inflammation, Dysbiosis & The Body Reset
Treatment for New Allergies After COVID in Hyderabad: Allergy Testing, Asthma Treatment and Sublingual Immunotherapy Treatment
If you suspect new allergies after COVID:
Seek medical advice from an allergist or immunologist for early diagnosis and to start treatment early as needed.
Track your symptoms — Identify triggers and their flare ups. This can be diagnosed easily by an allergy expert by conducting a Modified Allergen Skin Prick test at Aswini Allergy Centre. This test is painless and can be performed even on a two-year old child.
Manage symptoms:
Antihistamines
Avoidance of known triggers
Immediate Treatment with Sub Lingual Immunotherapy: a globally approved treatment for allergies.
Use of air purifiers or masks during high pollen seasons
Maintain overall health — Sleep, nutrition, and gentle exercise matter
Stay updated on vaccinations — They may reduce long-term risks.
Long COVID and New Allergies: Why Early Diagnosis and Specialist Allergy Treatment in India Matters
Long COVID continues to affect millions globally, revealing how deeply a viral infection can influence the immune system.
New-onset allergies are not just a minor inconvenience, they can significantly impact daily life. Increased awareness is essential so people don’t dismiss symptoms as stress or aging.
one message is clear: Routine clinical protocols help is limited now, it’s more responsibility of clinical Allergist and immunologist to think more, assess more, analyze out of the box on a broad post covid canvas.
If something feels different after COVID, it’s worth paying attention to.
“We are increasingly seeing patients develop new-onset allergies, asthma, and immune disturbances months after COVID-19. This is not a coincidence—Long COVID appears to keep the immune system in a persistently activated state, making it overreact to otherwise harmless triggers,” says Dr. Vyakarnam Nageshwar, Pulmonologist, Allergist, and Immunologist.
