Treatment of recalcitrant dermatitis can be regulated through oral and topical application.1. For oral medication: you need to choose levocetirizine hydrochloride granules, olopatadine hydrochloride tablets, and you can also apply compound glycyrrhizin capsule. If the dermatitis is thicker, you can take oral Avicenna capsule for anti-proliferative treatment.2, topical medication: you can apply retinoic acid ointment or salicylic acid ointment, 1:1 mixture of fluticasone propionate ointment or halomethasone ointment, and you can wrap the affected area with plastic wrap after the treatment, which can promote the softening of the local skin. Medium-wave narrow-spectrum ultraviolet light can also be chosen to soften the skin and anti-inflammatory therapeutic purposes. During the treatment period, avoid repeated rubbing of the affected area and avoid drinking alcohol.