Mite - Medical Significance

Medical Significance

Dust mites cause several forms of allergic diseases, including hay fever, asthma and eczema and are known to aggravate atopic dermatitis. Mites are usually found in warm and humid locations, including beds. It is thought that inhalation of mites during sleep exposes the human body to some antigens that eventually induce hypersensitivity reaction. Dust mite allergens are thought to be among the heaviest dust allergens.

Like most of the other types of allergy, treatment of mite allergy starts with avoidance. There is a strong body of evidence showing that avoidance should be helpful in patients with atopic dermatitis triggered by exposure to mites. Regular washing of mattresses and blankets with hot water can help in this regard. Antihistamines are also useful; Cetirizine, for example, is shown to reduce allergic symptoms of patients.

However, not all types of mites are infectious to humans, such as Alaskozetes antarcticus, an Arctic mite. For the ones that do infest humans an antiparasitic insecticide such as benzyl benzoate or sulphur in the form of sulphur soap or sulphur powder is generally used to control and eliminate the mite population.