Some patients with seborrheic dermatitis can be treated with erythromycin ointment, but it only relieves the symptoms. Usually erythromycin ointment is mainly used in the clinic for the treatment of ulcerated surface infections, common acne, pustular herpes and other purulent skin diseases. The cause of seborrheic dermatitis is not clear, and is mostly considered to be related to dietary habits, immune dysfunction, skin diseases, genetics and other factors, when the patient has a bacterial infection, you can use topical erythromycin ointment for treatment, which has anti-inflammatory effects, and thus can alleviate the symptoms. For patients with seborrheic dermatitis occurring on the face, when using erythromycin ointment, it is necessary to pay attention to avoid contact with the eyelids, mouth, nose and other parts of the body, and is prohibited for those who are allergic to the drug. If pregnant or lactating women use the drug, also need to be strictly under the guidance of the doctor. If the properties of the drug have changed, it is also necessary to prohibit the use of timely. It is recommended that patients with seborrheic dermatitis choose to use erythromycin ointment under the guidance of a doctor, and read the instructions carefully before using the drug to understand its related matters.