Sử dụng liệu pháp ánh sáng. Lột da bằng hoá chất. Đi hút mụn. Cân nhắc giải pháp tiêm steroid.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Light therapy comes in a variety of forms, as researchers have yet to find a definitively successful method and dose. This form of therapy works by using light exposure to kill bacteria that causes acne.  Depending on the type of light therapy being used, you may be able to complete this therapy method at home, or you may need to visit your doctor's office. Possible side effects include pain, red skin, and increased sensitivity. In this therapy method, a chemical solution (like salicylic acid) i