Dry skin after allergy is mainly caused by the decrease of moisture content in the stratum corneum during the recovery period. Clinical treatment requires the application of moisturizing agents such as hyaluronic acid biofilm or vitamin E cream, which can provide both moisturizing and anti-allergic efficacy. For the trunk, limbs, hands and feet, glucocorticoid medication hydrocortisone acetate ointment or dexamethasone acetate ointment can be applied to strengthen the anti-allergic efficacy. It can also be combined with the application of moistening and anti-itching capsules, which can nourish blood and moisten dryness, nourish Yin and stop itching. If it is accompanied by certain itching, oral loratadine capsules can also be taken. When outdoor activities in strong light, avoid long time in activities, so as not to cause the loss of skin moisture, dry skin aggravation.