Rash caused by dry skin may be eczema, atopic dermatitis and other skin diseases, can be under the guidance of the doctor for general treatment, medication, and if necessary, physical therapy. 1. General treatment: dry skin may lead to eczema-like rashes, intense itching and other symptoms, need to pay attention to daily moisturizing care of the skin, avoid the use of irritating toiletry products, after bathing can be used to make a mild skin care products moisturizing; to avoid hot water scalding, violent scratching and other bad habits; a reasonable diet, balanced nutrition; wear soft, loose clothing, to reduce the stimulation of the skin. 2. Medication: according to the condition, topical medication can be used for anti-allergy, anti-inflammatory and anti-itch treatment, such as hydrocortisone butyrate ointment, dexamethasone cream and other glucocorticosteroid medications; or oral loratadine, cetirizine and other antihistamine medications. 3. Physiotherapy: Medium-wave ultraviolet light (UVB) irradiation can be used if necessary, which can effectively improve the skin lesions and has good safety. It is recommended that patients with rashes caused by dry skin consult a doctor in a timely manner and standardize the treatment under the guidance of the doctor, avoiding private medication and delaying the condition.