Commonly used drugs for contact dermatitis include antihistamines, glucocorticosteroids, immunosuppressants and so on. 1. Antihistamine drugs: contact dermatitis is usually caused by skin allergies, patients often appear itchy skin symptoms. Therefore, it is necessary to follow the doctor’s instructions to apply antihistamines, commonly used drugs are loratadine, levocetirizine hydrochloride and so on. 2. Glucocorticoid drugs: including topical oral, topical drugs are mainly mometasone furoate cream, dexamethasone cream, etc.; oral drugs are mainly prednisone, methylprednisolone, etc., to play the role of anti-inflammatory, anti-allergic. However, these drugs need to be applied for a short period of time under the guidance of a doctor. 3. Immunosuppressants: If contact dermatitis is caused by abnormal immune function, it is necessary to apply immunosuppressants under the guidance of a doctor, such as methotrexate, cyclophosphamide and so on, which is conducive to reducing the inflammatory reaction. In addition, if contact dermatitis patients are combined with infection, they need to apply antibiotic drugs under the guidance of doctors, such as amoxicillin, cefdinir and so on, and at the same time, topical mupirocin ointment, fusidic acid cream and other antibiotic drugs, which is conducive to the control of local skin infection. Contact dermatitis patients should avoid blindly self-abuse of drugs, should be under the guidance of the doctor reasonable use of drugs, to prevent the abuse of drugs and cause adverse reactions.