The sudden growth of many pimples on the chin is usually common in common acne and can be relieved by general treatment, medication and physical therapy. 1. General treatment: It is recommended that acne patients pay attention to personal hygiene and wash the affected area with water daily. At the same time, it is necessary to have a regular routine, avoid staying up late and living an irregular life, which can help to alleviate the symptoms. 2. Medication: It is recommended that patients follow the doctor’s instructions to use topical retinoids, which have the effect of regulating the differentiation of epidermal cells and dissolving acne, and common medications include retinoid cream and adapalene gel. Patients can also use topical benzoyl peroxide as prescribed by the doctor, which can kill Propionibacterium acnes. For patients with moderate to severe acne, they can take oral isotretinoin and other medications as prescribed by the doctor to promote recovery. 3. Physical therapy: patients can also choose red and blue light therapy, which is suitable for mild and moderate lesions and helps to kill bacteria and anti-inflammatory. There are many ways to treat acne vulgaris, and it is recommended that patients go to regular hospitals and cooperate with doctors for standardized treatment.