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Latest Health Information

19 Jan 2026

Why Do You Get a Stuffy Nose Every Time the Seasons Change? It Might Be More Than Just a Cold

Many people experience nasal congestion, runny nose, sneezing, sore throat, or even occasional tinnitus and dizziness when the weather shifts between seasons. Some dismiss these as a simple cold or mild allergies, assuming they'll clear up on their own. However, these symptoms can sometimes signal underlying ear, nose, and throat (ENT) issues—potentially sinusitis—which shouldn't be ignored, as untreated cases may lead to serious complications.

But why do these problems flare up particularly during seasonal transitions? And how can you distinguish between allergic rhinitis (hay fever), a common cold, and sinusitis?

 

Why Seasonal Changes Trigger ENT Issues

Seasonal shifts often bring fluctuating temperatures—sudden cold snaps followed by warmer days—and changes in humidity. These can directly irritate the nasal and throat linings, causing blood vessels to dilate, mucus membranes to swell, and increased secretions. This results in congestion, frequent sneezing, and discomfort. When the air becomes drier, the throat loses moisture, leading to soreness or coughing.

Allergic rhinitis is often linked to higher levels of airborne allergens like pollen or dust mites during certain seasons, triggering an overactive immune response. This causes nasal swelling, excess clear mucus, itchy nose, and bouts of sneezing.

Poor indoor ventilation or air pollution can worsen these issues. In densely populated areas like Hong Kong, where allergens and pathogens are more prevalent, symptoms may overlap or occur simultaneously.

Persistent congestion can also lead to post-nasal drip, irritating the throat and airways, raising the risk of conditions like pharyngitis or bronchitis. If sinus drainage is blocked long-term, it may cause bacterial infections. Untreated bacterial sinusitis can spread, potentially leading to severe complications such as orbital cellulitis (infection around the eye) or meningitis.

 

How to Tell the Difference: Allergic Rhinitis, Cold, or Sinusitis?

These three conditions share overlapping symptoms, making them hard to differentiate. Here's a breakdown based on key characteristics:

  • Allergic Rhinitis (Hay Fever): Primarily features itchy nose, clear runny discharge, and repeated sneezing. It's often tied to seasons or specific triggers (e.g., pollen). No fever is typical, and symptoms can linger for weeks or longer. Itchy, watery eyes are common.
  • Sinusitis: Often involves thick yellow or green nasal discharge, facial pressure or pain (especially around the cheeks, forehead, or eyes), headaches, and sometimes fever. Reduced sense of smell or toothache may occur.
  • Common Cold: An acute viral upper respiratory infection starting with clear runny nose that may thicken later. Accompanied by sore throat, mild headache, or low-grade fever. It usually resolves in 1-2 weeks.

In urban environments with high population density and variable air quality, these can coexist—making accurate diagnosis even trickier.

 

When to Seek Medical Help?

Seasonal ENT discomfort is common but not trivial. Early intervention can identify the root cause and prevent worsening.

See a doctor promptly if:

  • Symptoms persist or worsen after 7-10 days
  • You have thick, colored discharge with facial pain, headache, or fever
  • Congestion is recurrent or severe

Addressing issues early—whether through antihistamines for allergies, decongestants for colds, or antibiotics (if bacterial) for sinusitis—can alleviate suffering and avoid complications.

Don't let seasonal sniffles ruin your comfort. Consulting an ENT specialist ensures proper management for better breathing and health year-round.