Sebaceous cysts, also known as epidermoid cysts, can occur in any part of the body and can be treated with ointments such as erythromycin ointment and mupirocin ointment only when secondary bacterial infections are present, and surgical intervention needs to be an option when inflammation is under control. 1. Erythromycin ointment: this belongs to the class of macrolide antibiotics, which can be used for secondary bacterial infections of the skin, and belongs to the common local topical medication, which has certain antibacterial activity for Gram-positive bacteria, part of Gram-negative bacteria, and part of the infections of chlamydia and mycoplasma, etc., and can improve the symptoms of secondary bacterial infections of sebaceous cysts. 2. Mupirocin ointment: this belongs to antibiotic drugs, can be used for skin infections caused by gram-positive bacteria, sebaceous cysts in secondary bacterial infections, you need to follow the doctor’s instructions to choose anti-infection ointment. 3. Surgical intervention: the key to the treatment of sebaceous cysts lies in the removal of the cysts, so after the local inflammation is under control, cyst removal can be chosen. Patients with sebaceous cysts should consult a doctor for timely treatment and avoid self-medication.