Winter Allergies: Causes, Symptoms, and Treatments

Published in : Tropical Medicine | January 16, 2025 |

Winter Allergies: Causes, Symptoms, and Treatments

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Winter allergies, unlike common cold or flu, are caused by indoor allergens like dust mites, mould, and pet dander, which become more prevalent as we spend time indoors. Symptoms include sneezing, runny nose, itchy eyes, and coughing. Treatments range from over-the-counter medications to lifestyle adjustments. If your symptoms persist, consult a healthcare provider at a trusted tropical medicine hospital in Bangalore for specialised care. 

What Are Winter Allergies?

Winter allergies are allergic reactions triggered by substances commonly found indoors during colder months. Unlike seasonal allergies, which are caused by outdoor triggers like pollen, winter allergies are caused by indoor allergens such as dust mites, mould spores, and pet dander. The symptoms often mimic those of the common cold, making it difficult to distinguish between the two without proper diagnosis.

Types of Winter Allergens

Understanding the types of allergens that trigger winter allergies is key to managing them effectively. 

Dust Mites 

Tiny organisms that thrive in warm and humid environments like bedding, carpets, and upholstered furniture. 

Mould Spores 

Mould grows in damp areas such as bathrooms, basements, and around windows. Inhaling mould spores can trigger allergic reactions. 

Pet Dander 

Dead skin flakes and saliva from pets can cause allergies, particularly when indoor time with furry companions increases during winter. 

Cockroach Droppings 

Allergens from cockroach droppings and saliva can linger in indoor spaces and worsen symptoms. 

Smoke and Strong Odours 

Although not allergens themselves, smoke and strong odours can irritate the respiratory system, exacerbating allergy symptoms.

Winter Allergy Symptoms

The winter allergy symptoms can overlap with other conditions like allergies and cold, making diagnosis essential. Common symptoms include: 

  • Nasal Symptoms: Sneezing, runny nose, nasal congestion, and postnasal drip. 
  • Eye Irritation: Red, itchy, and watery eyes. 
  • Respiratory Issues: Coughing, wheezing, and shortness of breath in severe cases. 
  • Skin Reactions: Dry, itchy, or flaky skin, especially with exposure to allergens like pet dander or mould. 
  • General Discomfort: Fatigue and difficulty concentrating due to persistent symptoms. 

Causes of Winter Allergies

The winter allergies causes are closely tied to our indoor habits during the colder months. As we seal windows and crank up the heat, allergens accumulate and create a perfect storm for allergic reactions.

1. Increased Time Indoors 

Staying inside more during winter means greater exposure to allergens like dust mites, pet dander, and mould. These can linger in carpets, furniture, and bedding, making allergy symptoms more common. 

2. Dry Indoor Air

Heaters and air conditioners dry out the air, irritating your nose and throat. This dryness makes it easier for allergens to trigger symptoms like congestion or a scratchy throat. 

3. Hidden Moisture and Mould

Poor ventilation in areas like bathrooms or basements allows mould to thrive. Even small amounts of hidden moisture can lead to mould growth, causing persistent allergy problems. 

4. Unclean Heating Systems

Dust and allergens trapped in vents get circulated when the heating system is turned on. This can stir up allergy symptoms if systems aren’t cleaned regularly.

Winter Allergies Treatment and Management

Managing winter allergies treatment involves a combination of prevention strategies, medication, and lifestyle adjustments. 

Prevention

  • Clean Regularly: Vacuum carpets and upholstery using HEPA filters and wash bedding in hot water weekly to reduce dust mites. 
  • Control Humidity: Keep indoor humidity below 50% using a dehumidifier to prevent mould growth. 
  • Pet Grooming: Bathe and groom pets regularly to minimise dander. 
  • Allergy-Proof Your Home: Use dust-mite-proof covers for mattresses and pillows and fix leaks to prevent mould. 

Medications

  • Antihistamines: Over-the-counter antihistamines can relieve sneezing, runny nose, and itching. 
  • Nasal Sprays: Steroid nasal sprays help reduce inflammation and congestion. 
  • Decongestants: Use sparingly to reduce nasal swelling but avoid prolonged use to prevent rebound congestion. 

Lifestyle Adjustments

  • Ventilation: Open windows for short periods to let fresh air circulate. 
  • Avoid Triggers: Stay away from known allergens like cigarette smoke and strong cleaning agents. 
  • Strengthen Immunity: Stay hydrated, eat healthily, and get regular exercise to boost overall health. 

 When to See a Doctor? 

If your symptoms persist despite taking preventive measures and medications, it’s time to consult a healthcare provider. Individuals in Bangalore can visit a tropical medicine hospital in Bangalore or a general surgeon in Bangalore for specialised care, especially if: 

  • Symptoms last longer than two weeks. 
  • You experience difficulty breathing or persistent wheezing. 
  • Over-the-counter medications fail to provide relief. 
  • You develop severe skin rashes or swelling.

Conclusion

Winter allergies can be disruptive, but with the right knowledge and treatment strategies, they can be managed effectively. Recognising the symptoms, identifying the causes, and implementing preventive measures are key to finding relief. If your symptoms worsen or persist, don’t hesitate to seek professional medical advice to ensure a comfortable and allergy-free winter.

Frequently Asked Questions

Why am I having allergies in winter? 

Winter allergies occur due to increased exposure to indoor allergens like dust mites, mould, and pet dander as people spend more time indoors during colder months. 

How do you treat a cold allergy? 

Cold allergies can be managed with antihistamines, nasal sprays, and preventive measures like reducing exposure to allergens and maintaining clean, dry indoor environments. 

What is the best medicine for winter allergies? 

The best medicine varies depending on symptoms but often includes antihistamines, decongestants, and nasal sprays. Consult a doctor for a personalised treatment plan.


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