The dermatitis caused by mite bites is collectively called mite dermatitis. There are many types of mites, so here we only introduce dermatitis caused by lice mites, pink mites, etc. Because the disease occurs mostly in farmers who are in contact with grains during the autumn harvest, it is also called grain itch, commonly known as “barley itch”, “straw itch”, “grocery itch The disease is also known as “barley itch”, “straw itch”, “grocery itch”, “grass itch”, “urticaria-like mite dermatitis”, “bushy mite dermatitis” and so on. Since this type of mites are parasitic on crops, flour, grocery commodities and larvae of soft-bodied insects for nutrition, this disease mostly occurs in farmers, porters, flour-makers who often come into contact with crops and their products, and people who often sleep on straw mats can also occasionally occur. Prevention 1. Mites are afraid of light, heat and dryness, so the living room should be kept ventilated and dry. 2. Do not use new straw mats, new bamboo mats, new blankets, Simmons, etc. directly. 3, before use, scald with boiling water, or spray insecticide such as mirex, radar, must puff, trichlorfon, etc., and then expose to the sun. 4.For old straw mats, old bamboo mats, old blankets, Simmons, etc. stored in damp places, they should also be treated in accordance with the above method before use. 5.Do not touch the skin directly with grass, leaves and animal fur. 6.When working in places with mites, you should wear long-sleeved tops, tighten cuffs and pant legs, wear gloves and shoes and socks, and also apply a thin layer of 5% sulfur cream on the exposed skin in advance, take a bath after work, and expose the clothes under replacement to the sun after cleaning. 7. Pet fur should be cleaned and sprayed with insecticide frequently. 8, mite dermatitis patients can apply topical anti-itch agents, such as stove glycolic lotion or coated with dermatoprene ointment, Wuji cream, while taking oral antihistamines such as Xinminle, Xismin.