What is house dust mite?
House dust mites are microscopic relatives of spiders that feed on shed human skin flakes. They thrive in warm, humid indoor environments and live in mattresses, pillows, carpets, soft toys and upholstered furniture. It isn't the mite itself that triggers allergy — it's proteins in their droppings and body fragments, which become airborne with any disturbance of bedding or fabric.
Conditions it commonly triggers
Dust mite sensitisation is strongly linked to allergic rhinitis (especially the year-round type), asthma, and can worsen eczema in sensitised children. In many clinical allergy series, it is the leading sensitiser found on skin prick testing.
Where it hides at home
- Mattresses, pillows and quilts
- Carpets and soft rugs
- Curtains and upholstered sofas
- Soft toys, especially those rarely washed
- Humid, poorly ventilated bedrooms
Reducing exposure at home
- Use allergen-proof (mite-impermeable) covers on mattresses and pillows
- Wash bedding weekly in hot water (≥55°C) where feasible
- Reduce carpeting in the child's bedroom; prefer washable rugs or bare floors
- Keep indoor humidity lower with ventilation; damp, humid rooms favour mite growth
- Vacuum with a HEPA-filter vacuum cleaner regularly
- Limit soft toys on the bed, or freeze/wash them periodically
Testing & treatment
Skin prick testing confirms true dust mite sensitisation — this matters because symptoms alone are an unreliable guide to the actual trigger. For children with confirmed, clinically relevant dust mite allergy and inadequate control on medicines and avoidance alone, allergen immunotherapy (AIT) is an option to discuss with Dr. Narwani.
Talk to Dr. Narwani: If your child's symptoms are affecting sleep, school, play or growth, or you suspect a specific trigger, book a consultation for proper allergy work-up rather than guessing at home remedies.