There is no such thing as the best treatment for herpes dermatitis. Treatment includes general therapy, oral medications, and topical medications. 1. General treatment: A gluten-free diet is recommended, including avoiding iodine-containing medications and foods such as nori and seaweed. Strictly limit gluten foods such as wheat, barley, rye, etc., and so on. 2. Oral medication: Amphenicol belongs to the first-line therapeutic drugs, which can significantly reduce skin lesions and relieve itching. If the patient can not tolerate aminosulfone, sulfonamides such as sulfapyridine can be used. Patients who cannot tolerate aminosulfone and sulfonamides can take oral tetracycline, minocycline and other tetracycline drugs. Patients with obvious itching can use antihistamines such as loratadine and cetirizine. 3. Topical medications: local topical glucocorticosteroids can relieve itching, commonly used, such as mometasone furoate, dexamethasone acetate and so on. If you are not feeling well, you need to improve the relevant examinations under the guidance of a doctor to make a clear diagnosis, and need to standardize the treatment, so as not to delay the condition, the specific use of drugs need to follow the doctor’s instructions.