Erythromycin ointment belongs to the class of antibiotics for mycoplasma infections and skin diseases with small ulcerated surfaces, and is not a special medication for the treatment of hemorrhoids. However, hemorrhoids combined with bacterial infections can be treated together with other medications. Hemorrhoids are a common disease of the anus, the exact cause of which is not clear. It is mostly thought to be a thrombus formed by varicose veins around the anal canal, with clinical manifestations such as pain and bleeding occurring after local tissue edema is stimulated. Treatment is mostly surgical excision or oral diosmin tablets or topical hemorrhoid medication, and specific medications need to follow the doctor’s instructions. If the hemorrhoid is stimulated by extrusion or friction, it can become infected. Erythromycin ointment is an antibacterial ointment that is mostly used for skin infections. When the hemorrhoid is locally swollen, ulcerated, or infected you can use erythromycin ointment for anti-infection treatment. In short, if hemorrhoids are combined with infection, you can use erythromycin ointment for combined treatment.