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Indoor & Outdoor Allergies

Dust Mite Allergy

Year-round congestion, sneezing, or asthma symptoms triggered by microscopic mites living in bedding, carpets, and upholstery. Bedroom changes plus immunotherapy can dramatically reduce symptoms.

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Dr. Payel Gupta, MD

Medically Reviewed

Dr. Payel Gupta, MD

Triple Board-Certified Allergist & Immunologist

Last reviewed: May 2026

Overview

Dust mites are tiny organisms that live in bedding, upholstery, and carpet. They thrive in warm, humid environments and are a common cause of year-round allergy symptoms.

symptoms

  • Year-round nasal congestion, sneezing, runny nose
  • Itchy eyes, especially in the morning
  • Worsening symptoms in bed or when dusting
  • Asthma symptoms in some individuals

triggers

  • Bedding and mattresses
  • Upholstered furniture
  • Carpets
  • Humidity above 50%

testing

  • Skin prick or serum IgE for dust mite allergens (e.g., Der p 1, Der f 1)

treatment

avoidance

  • Allergen-proof mattress and pillow encasements
  • Wash bedding in hot water weekly
  • Lower indoor humidity
  • Remove carpet when possible

medications

  • Nasal corticosteroids
  • Antihistamines
  • Allergy shots (subcutaneous immunotherapy)

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