Repeated acne on the left cheek is considered to be caused by acne, sebaceous cysts, folliculitis and other diseases. It is recommended to pay attention to maintain a healthy lifestyle, and if necessary, according to the cause of the disease can be taken topical medication, oral medication, physical therapy or surgical treatment. 1. Acne: It is recommended to avoid high sugar and greasy food, pay attention to skin cleaning and sun protection. Topical antibiotics, such as clindamycin, can be used; topical retinoids can also be used; oral medications include antibiotics, such as minocycline and doxycycline. 2. Sebaceous cysts: the cause of sebaceous cysts is relatively clear, it is the sebaceous gland ducts are blocked, the secretion in the local collection caused by, resulting in local acne. The cysts are mainly removed through surgery. 3. Folliculitis: Folliculitis is related to bacterial infection, resulting in localized single or multiple red pimples. It can be applied by topical fusidic acid ointment and mupirocin ointment. Oral medications such as amoxicillin and cefadroxil can be taken if necessary. Recurrent acne on the left cheek is not recommended to be self-medicated. You can visit the dermatology department of the hospital and ask the doctor to develop a suitable treatment plan.