Dust mites feed on hair and skin that we and our pets shed. Whilst dust mites clean up the particles we leave behind, their faeces contain proteins.

This protein can trigger allergies when areas of the home are disturbed, and the faeces are distributed into the air, settling onto our skin. Our body sees this protein as an invader and produces histamines to reject the attack. When people, commonly with a family history of allergy, are repeatedly exposed to house dust mite droppings or faeces, they can develop a specific sensitivity. This sensitivity can lead to allergy symptoms.

If your allergy symptoms are often more apparent in the morning as you wake or lie down to sleep, this is a key sign that dust mites are the trigger for your allergy symptoms.