There are many types of skin allergies, including hives, contact dermatitis, eczema, etc. They are usually treated with antihistamines, glucocorticosteroids, itch relievers and other medications. 1. Urticaria: Urticaria is a kind of allergic dermatitis, generally take oral antihistamine as the main treatment, the common ones are loratadine, cetirizine, etc., if necessary, you can choose oral glucocorticosteroid, such as prednisone and so on. At the same time, topical anti-itching agents such as glycerine lotion, zinc oxide ointment. 2. Contact dermatitis: contact dermatitis to glucocorticoid topical mainly, commonly used dexamethasone cream, hydrocortisone cream, can play anti-inflammatory, anti-allergic effect. At the same time can be combined with oral antihistamine drugs such as chlorpheniramine maleate. 3. eczema: eczema is also generally glucocorticoid drugs mainly for external use, mild can use hydrocortisone cream, dexamethasone cream, moderate can use tretinoin cream, mometasone furoate cream, severe with hassinide ointment, halometasone ointment, and so on. There are many medicines for treating skin allergies. In addition to the above medicines, immunosuppressants, antibiotics and other medicines can be chosen according to the situation. The medications should be used as prescribed by the doctor.