Skin allergy to belt buckles is usually caused by contact dermatitis, patients can be detached from the allergenic substances, topical drugs, oral medication and other methods of treatment. 1. detach from the allergenic substances: belt buckle is usually composed of metal products, part of the allergy patients in contact with the belt buckle may lead to the occurrence of skin allergy symptoms, in the process of treatment, the patient should first pay attention to detach from and avoid re-exposure to the belt buckle and other allergenic substances, in order to prevent the allergic symptoms from further development. 2. Topical drugs: for acute allergy symptoms are mild, exudation is not obvious patients can first use glycerine lotion wet compresses, there is a small amount of exudate can be used externally zinc oxide oil, there are obvious exudate can be used boric acid solution wet compresses; in the above drugs can be used wet compresses, can be applied locally to help anti-inflammatory drugs such as dexamethasone cream, anti-allergy treatment. 3. Oral medication: For patients with more severe allergic symptoms, accompanied by obvious itching symptoms, you can use loratadine, cetirizine, calcium, vitamin C and other drugs to help improve the symptoms on the basis of the above treatment. Skin allergies to the belt buckle need to immediately remove the belt, and timely consultation, under the guidance of a physician for standardized treatment, the above drugs should be used in accordance with medical advice, to avoid the occurrence of adverse reactions.