Cold, Allergy Or Toxic Air? Why Your Nose May Be Sniffling As AQI Crosses 450

With the sudden change in weather, a constantly running nose, repeated sneezing or nasal congestion may make you think you are coming down with a cold. However, as Delhi’s Air Quality Index (AQI) crosses 450, toxic air could be another reason behind these symptoms.

While a common cold, allergic rhinitis and pollution-related irritation may leave you with a stuffy or runny nose, the pattern of symptoms, how long they last and what triggers them can help distinguish between the three. The tricky part is that pollution-related irritation can feel similar to a common cold or an allergy, making it difficult to identify the cause. So, how can you tell whether your runny nose is being triggered by a viral infection, an allergic reaction or the air you breathe?

“A blocked or runny nose is something many people blame on a change in weather or the latest cold going around. The same symptom can come from very different sources," Dr. Rahul Garg, Head of Department and Senior Consultant, ENT and Head-Neck Surgery, explains why recognising these differences matters and when nasal symptoms need medical attention.

Is Your Runny Nose A Sign Of A Common Cold?

A common cold is usually caused by a viral infection and may begin with a scratchy or mildly sore throat before progressing to sneezing, a runny nose and nasal congestion. Some people also experience a mild fever, body aches, cough or general fatigue.

According to Dr Garg, a cold generally develops gradually and tends to resolve within around seven days, although some symptoms, particularly a cough, may last longer. “Among 40,000 patients in India experiencing nasal symptoms, more than half screened positive for allergic rhinitis, indicating that persistent sneezing, a runny nose or nasal congestion may not always be due to a common cold," notes Dr. Garg. Symptoms that return in a particular season or after contact with a specific trigger often point toward allergy.

What you can do: Rest, drink adequate fluids and use simple measures to ease congestion. Most uncomplicated colds improve without specific treatment. Antibiotics do not work against viral infections and should not be taken unless prescribed for a bacterial infection.

If your nose starts running whenever you clean the house, enter a dusty room or spend time around pets, an allergy could be responsible.

Allergic rhinitis occurs when the immune system reacts to otherwise harmless substances such as pollen, dust mites, mould spores or pet dander. Common symptoms include repeated bouts of sneezing, a watery nasal discharge, congestion and itching in the nose, throat or eyes.

Unlike a cold, allergies generally do not cause fever. They may also persist for weeks or return whenever you encounter a particular trigger.

Dr Garg points to Indian patient screening data involving around 40,000 people with nasal symptoms, in which more than half screened positive for allergic rhinitis. This highlights why persistent sneezing and congestion should not automatically be dismissed as repeated episodes of the common cold.

What you can do: Identify and limit exposure to the suspected trigger. Depending on the cause, this may involve reducing dust accumulation, washing bedding regularly, controlling indoor mould or limiting exposure to pollen. A doctor can help establish whether the symptoms are allergy-related and recommend appropriate treatment.

Can Air Pollution Make Your Nose Run Or Feel Blocked?

Not every runny nose is caused by an infection or an allergy. Sometimes, the air you breathe can irritate the nasal passages.

Smoke, smog, fine particulate matter and chemical fumes can inflame the lining of the nose, causing dryness, a burning sensation, sneezing and congestion. These symptoms may become more noticeable after spending time outdoors, particularly on days when air quality is poor.

esearch published in the Journal of Allergy and Clinical Immunology has linked higher exposure to fine particulate matter (PM2.5) with more severe nasal congestion, irritation and sneezing among people with rhinitis.

Dr Garg explains that pollution-related nasal irritation often improves when exposure to polluted air is reduced. Unlike an allergy, it may not be linked to one specific substance that triggers an immune response.

What you can do: Check local air-quality levels and limit prolonged outdoor exposure when pollution is high. Keep windows closed during periods of heavy pollution, avoid areas with smoke and dust, and use a well-fitting mask when necessary.

How Can You Protect Your Nasal Passages From Irritation?

A few everyday measures can help keep nasal passages comfortable, particularly during periods of poor air quality.

– Use saline nasal spray: It can help rinse away dust and other airborne irritants while keeping the nasal passages moist.

– Stay hydrated: Adequate fluid intake helps prevent excessive dryness.

– Improve indoor air quality: Reduce dust accumulation, avoid indoor smoking and consider suitable air filtration where needed.

– Limit outdoor exposure: Avoid prolonged outdoor activity when pollution levels are particularly high.

– Avoid cigarette smoke: Tobacco smoke can further irritate the nasal lining and worsen congestion.

When Should You See A Doctor?

Most uncomplicated colds and episodes of pollution-related irritation settle with simple care. However, persistent, recurring or worsening symptoms should not be ignored.

Dr Garg advises seeking medical evaluation if nasal symptoms do not improve, repeatedly return or become progressively worse. A high fever, facial pain, breathing difficulty or symptoms that worsen after initially getting better also warrant medical attention.

A blocked nose may seem like a minor inconvenience, but understanding what triggers it can help you choose the right approach. Whether it is a passing viral infection, an allergy or the air around you, the first step is to look beyond the symptom and identify its cause.

 

This is only for your information, kindly take the advice of your doctor for food, medicines, exercises and so on.   

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The Sugar Skin Connection

 An occasional dessert will not suddenly age your face, but the concern is a sustained pattern of excessive sugar consumption.

Sugar is not the first thing that comes to mind when we think of wrinkles, fine lines or sagging skin. But the body’s response to excess sugar may influence how your skin ages over time.

The science is simple. Think of collagen as the scaffolding that supports the skin and elastin as the springs that help it bounce back. With age, our natural production of collagen declines, while environmental factors such as ultraviolet radiation, pollution, smoking and poor nutrition can accelerate its breakdown.

Glycation adds another layer to this process. When sugar binds to collagen, it can form cross-links between protein fibres, making them less flexible. Glycated collagen is also more resistant to normal turnover, meaning damaged or altered collagen may persist for longer in the skin.

The result? A gradual loss of the smooth, resilient texture associated with youthful skin. Fine lines, wrinkles, reduced elasticity and a less supple appearance may become more noticeable, although these changes cannot be attributed to sugar alone.

The role of high-sugar diets and insulin

Regularly consuming large amounts of refined carbohydrates and sugary drinks can contribute to repeated spikes in blood glucose, particularly in susceptible individuals.

Insulin is essential for regulating blood glucose, but chronically elevated insulin levels and insulin resistance can influence several hormonal and inflammatory pathways. These processes may indirectly affect skin health.

High-glycaemic diets have also been associated with acne in some studies, potentially through insulin and Insulin-like Growth Factor 1 (IGF-1), which can influence sebum production and follicular activity. Although acne and skin ageing are different concerns, both illustrate how dietary patterns can interact with skin biology.

It is important to distinguish association from causation. Not everyone who consumes sugar develops premature wrinkles, and an individual’s overall diet, metabolic health and lifestyle matter considerably.

Sugar, inflammation and oxidative stress

Excessive sugar consumption may also contribute to metabolic disturbances associated with chronic low-grade inflammation and oxidative stress.

Oxidative stress occurs when free radicals overwhelm the body’s antioxidant defences.

Inflammation can activate enzymes, including matrix metalloproteinases (MMPs), which are involved in collagen degradation. Ultraviolet exposure is a particularly important trigger of these processes, which is why sun protection remains central to any anti-ageing strategy.

Does cutting sugar reverse skin ageing?

Reducing excessive sugar intake may support long-term skin health, but it cannot completely reverse established glycation or restore all the collagen and elastin lost with age.

A healthier diet can help reduce some modifiable contributors, but there is no instant dietary solution for wrinkles.

Practical ways to protect your skin

Reduce added sugar: Limit sugary drinks, desserts, and highly sweetened foods.

Choose balanced meals: Eat whole grains, vegetables, and healthy fats to maintain stable blood glucose levels.

Eat antioxidant-rich foods: Include colourful fruits, vegetables, nuts and seeds in diet.

Prioritise protein: Adequate dietary protein supplies the amino acids required for the maintenance and repair of body tissues, including the skin.

Sugar is not a poison, and an occasional dessert will not suddenly age your face. The concern is a sustained pattern of excessive sugar consumption. Supporting healthy skin is less about eliminating pleasure from the plate and more about making consistent choices that benefit the body over time.

This is only for your information, kindly take the advice of your doctor for food, medicines, exercises and so on.   

https://gscrochetdesigns.blogspot.com. one can see my crochet creations  

https://gseasyrecipes.blogspot.com. feel free to view for easy, simple and healthy recipes    

https://kneereplacement-stickclub.blogspot.com. for info on knee replacement

https://GSiyers home remedies.blogspot.com   is the latest addition to my blogs