Prevention of dust mites is important for allergic diseases. Although dust mites can not be avoided, but as far as possible to reduce exposure is the key to the treatment of allergic rhinitis, bronchial asthma, idiopathic dermatitis: 1, commonly used bed sheets and covers if the weather is good days. You can get more sunlight to sunbathe. If the cover is cleaned, you can pre-wash it once with hot water first. It is also good to change one pillow a year. 2, the bedroom should avoid moisture, pay attention to ventilation; 3, carpets are easy to breed mites, wooden flooring is a good choice for the bedroom and home furnishings. 4, avoid pets into the bedroom, more should avoid children holding pets to sleep. 5, soon to be summer, the air conditioning filter should also be washed.