What Is a Dust Allergy?
A dust mite allergy is an allergic reaction caused by tiny microscopic bugs that live within household dust. In the same family as ticks and spiders, dust mites feed on shed skin cells and thrive in warm, humid environments — particularly in bedding, upholstery, and carpet.
Reactions to dust mites are similar to asthma, with symptoms including wheezing and difficulty breathing. This is a common allergy that can be effectively prevented and treated.
Symptoms
If you have a dust mite allergy, exposure may cause:
- Sneezing or coughing
- Runny nose and congested sinuses
- Itchy or irritated eyes
- Postnasal drip and facial pressure
- Trouble breathing or chest tightness (especially if you have asthma)
When to See a Doctor
Consult Dr. Zoeteman if your dust mite allergy symptoms persist after several days, or worsen to the point where you find it difficult to sleep or breathe comfortably.
Causes
Dust mite allergies are caused by proteins left behind by tiny mites living in household dust. These proteins trigger the immune system's inflammatory response.
Diagnosis & Tests
Dr. Zoeteman may use one or more of the following to confirm a dust mite allergy:
- Physical examination of nasal passages
- Skin allergy test — allergen samples applied to the skin
- Blood test measuring IgE antibody levels
Treatment Options
The most effective treatment is minimizing dust mite exposure at home. Additional treatments include:
- Allergy immunotherapy — long-term desensitization through regular allergy shots
- Antihistamines to reduce sneezing and runny nose
- Decongestants for nasal congestion
- Corticosteroid nasal sprays for inflammation
Prevention
Regularly vacuuming with a HEPA-filter vacuum, washing bedding in hot water weekly, using allergen-proof mattress and pillow covers, and reducing indoor humidity below 50% can significantly lower dust mite populations in your home.