If there are recurrent episodes of dermatitis, it is possible that the triggering factors of dermatitis persist. If this occurs, it is necessary to try to find the triggering factors and then remove them, as well as to treat the symptoms according to the specific manifestations of dermatitis. If the dermatitis forms an inflammatory erythema, topical application of butyl hydroxy acid cream, hydrocortisone butyrate cream, etc. can be applied topically. Some dermatitis with certain itching symptoms also need to be combined with oral antihistamines to control the development of itching, you can take oral second generation antihistamines, such as levocetirizine hydrochloride, loratadine, etc. Avoid scratching during the treatment period.