Symmetrical eczema is mostly caused by allergic factors, and the rash, in addition to symmetrical distribution, can also be manifested as unclear boundaries. In terms of morphology, polymorphic rash can be formed, including erythema, papules, papules, blisters, scales and other manifestations, accompanied by a certain degree of itching, and if there is a large area of the skin surface breakage can form a certain degree of pain. In clinical treatment, oral anti-allergy drugs can be taken, including olopatadine hydrochloride tablets, epinastine hydrochloride capsules. If the patient’s rash is still not significantly improved, can be combined with oral administration of compound glycyrrhizin tablets. After a period of treatment, the dosage of Glycyrrhizin Compound can be gradually reduced or even stopped. For topical medication, 2% boric acid solution can be applied to the oozing rash, and dry rash can be treated with topical Denuded cream.