How should oily skin with many blackheads and acne be improved?

Large pores and blackheads have a lot to do with our oily skin. When there is more oil, the pores will try to "open their mouths" to let the oil out, and the pores will become larger. If there is too much oil and the pores are too narrow to be discharged, there will be closed acne, that is, hoary head. If sebum is blocked in the hair follicle and oxidized, it becomes a blackhead. So the first step, what we need to do is to wash off the excess oil on our face first. Attention should be paid here, don't covet "deep cleaning" and don't think that one step is enough. Our pores are not an open channel, and not any ingredients can lead to them. Therefore, we should give priority to gentle cleaning, and try not to destroy the skin barrier and hurt the skin. For example, use amino acid cleansing products, do not wash your face more than twice a day, and do not use exfoliating products too often. One week 1 time is enough.