Chin pimples, also known as acne, can be treated with ointments such as retinoic acid, benzoyl peroxide, azelaic acid, etc. under doctor’s supervision. 1. Vitamin A acid: mainly used in the treatment of mild to moderate acne, can dissolve microcomedones, anti-inflammatory and regulating keratinocytes and other functions, can improve acne pigmentation and acne scarring, but note that allergy is prohibited. 2. Benzoyl peroxide: commonly used in the treatment of common acne, can have a certain antibacterial effect on the propionibacterium acnes. However, it is prohibited for allergic patients. 3. Azelaic acid: It can reduce local flora, inhibit Propionibacterium acnes and dissolve acne, so it can also be used for the above symptoms. It is recommended to go to the hospital in time to avoid delaying the condition, and the drugs should be applied reasonably according to the doctor’s instructions.