Itchy body using the old cooler may be contact dermatitis or mite bites caused by the former need to get rid of allergens, the use of anti-allergy drugs, the latter need to use drugs to kill mites and so on. 1. Contact dermatitis: the old cooler for a long time without may have dust, fur and other residues, skin contact is likely to cause allergies and lead to itching. At this time the body caused by itching first stop or replace the use of old mats, and the use of anti-allergy drugs such as loratadine and cyproheptadine. 2. Mite bites: mites caused by itchy body mites should be removed from the cooler, do not scratch to cause secondary infection. The old cooler can be cleaned and exposed to the sun, the patient can be used externally with glycerine lotion coated with itching, if necessary, oral antihistamine drugs such as loratadine. The use of old cooler appeared on the body itchy symptoms, should be as soon as possible to seek medical treatment, under the guidance of the doctor to deal with, usually also need to do a good job of environmental and personal hygiene. The above drugs need to be used in accordance with medical advice.