Skin allergies can be relieved by keeping away from allergens, taking oral anti-allergy drugs and applying glucocorticoids. 1. Keep away from allergens: firstly, find out and determine the allergens that cause skin allergy, and keep away from or avoid re-exposure to substances that can cause allergic reactions in human body. 2. Oral anti-allergy drugs: such as oral cetirizine hydrochloride, loratadine, benzylamine and other drugs can effectively relieve allergy symptoms. 3. Application of glucocorticosteroids: in the case of severe allergies, benadryl can be selected for intramuscular injection or intravenous injection of dexamethasone to relieve allergic symptoms. Skin allergies should be treated as soon as possible, and the medication should be used under the guidance of a doctor. Do not use your own medication to deal with it.