Nose Blocked Every Rainy Season? An ENT Doctor Explains Why

You are not alone if your nose feels blocked the instant it begins to rain. This seasonal trend is actually physiological and not just about catching a cold. Rainy weather, combined with humidity, temperature and a change in allergens all can irritate the nasal lining and bring congestion. 

It is a common allergy complaint, especially for those vulnerable to allergies or sinus sensitivity. Read on to know more about it as we reached out to an ENT expert to know more about it. 

How Does Rain Actually Affect Your Nose?

According to Dr Rohit Udaya Prasad, Lead and Senior Consultant, ENT and Cochlear Implants, KIMS Hospitals, Bengaluru, says that multiple factors come together during the rainy season to cause the congestion:

• More moisture can lead to growth of mould spores and dust mites, which are both nasal irritants.
• A sudden drop in temperature during the rain may cause the blood vessels in the nose to become swollen and constrict the passage to the airway.
• The barometric pressure fluctuations that frequently occur with rain can impact sinus pressure and drainage.
• Damp weather can make a blocked nose worse and increase the sensation of a blocked nose because of the post nasal drip.
• When it rains, people are more likely to be inside, where they may come into contact with more dust and indoor allergens.

This barometric pressure mechanism is well documented. A 2024 study published in the World Journal of Otorhinolaryngology, Head and Neck Surgery, found that as weather fronts approach and pressure drops, the air trapped inside the sinuses expands. That trapped air cannot escape rapidly when the small drainage openings are already restricted due to swelling and thus results in pressure and discomfort.

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What Causes Nose Blockage?

According to the review published in the Ear, Nose & Throat Journal, severe nose blockage and crusting can stem from atrophic rhinitis, a chronic condition causing the progressive wasting of nasal tissue.

The study highlights several primary and secondary causes behind this type of nasal obstruction:

• If you have had a serious nose injury or a very aggressive type of nose surgery, the inner lining of your nose can sometimes thin out or become damaged over time.
• Poor nutrition, particularly iron-deficiency anemia, is one of the most important biological risk factors associated with tissue degeneration.
• Over time, chronic infections due to recurrent bacterial colonisation and long-standing chronic sinusitis lead to damage of the mucosal lining.
• Systemic/Autoimmune Disorders: Autoimmune disorders and granulomatous diseases are abnormalities of normal vascularization and nasal tissue that occur throughout the body.
• Hormonal Imbalances and Climate: Hormonal changes and hot and dry climates can lead to dryness of secretions and exacerbate airway obstruction.

Can You Manage It Naturally at Home?

Yes, Dr Prasad explains that there are several simple and natural ways to relieve symptoms:

• Inhaling steam to reduce congestion and make breathing easier.
• Using saline nasal rinses to flush irritants and inflammation. Using saline nasal rinses to wash out the irritants and inflammation.
• Drinking plenty of liquids to help thin mucus will help.
• Maintaining good indoor air quality and preventing mould / dust accumulation
• Hot liquids such as herbal teas that will help relieve the discomfort in your nose.

What Are the Best Prevention Tips for Rainy Season Congestion?

Dr Prasad recommends a proactive approach rather than waiting for symptoms to appear:

• Keeping the home dry and well ventilated, using a dehumidifier if needed during heavy rains
• Regularly cleaning areas prone to dampness or mould growth
• Avoiding prolonged exposure to wet clothing or shoes
• Managing known allergies proactively during the monsoon season
• Maintaining good hydration and a balanced diet to support overall immune function

When Does a Blocked Nose During Rain Become Serious?

Not every case is harmless, according to Dr Prasad. It's worth taking seriously if:

• Congestion persists for more than a couple of weeks without improvement
• It's accompanied by facial pain, pressure, or headaches, suggesting possible sinusitis
• There's fever or thick discoloured discharge
• Breathing difficulty is significant enough to disturb sleep or daily activities

Symptoms that are recurring every rainy season and significantly affecting quality of life may need a more thorough allergy or sinus evaluation

What Are the Treatment Options?

Dr Prasad explains the usual method depending upon the severity and cause:

• Saline nasal sprays and decongestants for a brief period of time
• Antihistamines, in case of allergy
• Antibiotics if bacterial sinus infection diagnosed

If it occurs more than once or is persistent, more testing may be required for underlying problems such as deviated septum, nasal polyps or chronic sinusitis, and treatments will be appropriate.

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Conclusion

A blocked nose in rainy weather isn't a matter of bad luck. It is a true reaction of the already susceptible nasal tissue to humidity, temperature changes, allergens and atmospheric pressure changes. The vast majority resolve with home treatment and prevention, but if symptoms persist or get worse, do seek a proper consultation with a doctor, particularly if this occurs each rainy season.