Itchy body after contact with caterpillars, consider and caterpillar dermatitis related. It is recommended to do a good job of skin care, external anti-itch, glucocorticoid ointment, if necessary with oral antihistamine medication. 1. Do a good job of skin care: local itching after contact with caterpillars, it is recommended to timely get out of the environment, do a good job of skin care, do not scratch, to avoid infection. 2. Topical medication: limited itching, can be given glycerite lotion coating. If the itching is obvious, glucocorticoid ointment can be given, such as hydrocortisone butyrate, halometasone cream, which can relieve the inflammatory reaction more quickly. 3. Oral medication: If the itchy skin area is large, it is recommended to give oral antihistamines, such as loratadine tablets, levocetirizine tablets, fexofenadine tablets, which can reduce the itchiness of the skin. If the condition is serious and the effect of the above medication is not obvious, or the symptoms further aggravate, it is recommended to go to the dermatology department of the hospital for examination and treatment in time.