The number of dust in the house varies widely - depending on the location of the house, climate, time of year. Thus, in the rural house dust smaller than the apartment citizenship, and in the same house there is a difference between the number of bathroom and bedroom .
Invariably, only that any Web-dust - a comprehensive set of allergens, chief among them the house dust mites.
House dust mites
Pliers (Acarida) - tiny arthropods (like spiders), invisible naked eye diameter of the body - about 0.3 mm).
Two types of ticks found in house dust, can cause allergies: Dermatophagoides pteronyssinus and Dermatophagoides farinae.
These mites feed mailed desquamated horny layer of human skin, which is the largest part of house dust.
Pliers found in beds and bedding (pillows, mattresses, blankets, etc.) - where people lose the largest number of horns scales in friction skin during sleep. However, only the horns flakes that mites are not enough. They live in symbiosis with mold microscopic fungi living in a mattress.
You will be interested to know that in patients with sensitization to mites is also allergic to their excrement, which by their nature are ideal allergens. In bed more mites than on the floor in the bedroom. One gram of dust from the mattress can contain from 200 to 15000 mites!
The body of a sleeping person can harden up to 20-30 ° C and further create humidity - ideal conditions for life mites, and mold, in which they live in symbiosis, which is fed.
Allergy home dust (actually, for ticks) are most often manifests itself in the form of asthma and rhinitis, rarely - conjunctivitis.
Attack begins when the patient wakes up.
The symptoms observed throughout the year, but patients feel worse in autumn and winter - when the humidity higher.