Needle Clearing refers to the mechanical clearing of acne through the use of acne clearing needles. After the needle clearing, you can take care of the wound according to the wound staging (red and swollen period, stable effect period), and the care method includes preventing infection, gentle cleaning, and paying attention to sun protection. 1. Redness and swelling of the wound: refers to 1-2 days after the needle clearing, at this time the wound still belongs to the acute phase of mechanical injury redness and swelling of the state, avoid scratching the treatment site to avoid infection. 2 days later, you can use a mild, sterile medical products to clean the skin. 2. Stable effect period: that is, 3-5 days after the needle clear, the wound has passed the acute stage of edema, do not over clean the skin, so as not to cause skin irritation, at the same time, need to be strictly sunscreen, as far as possible to use the sunscreen clothing, sunscreen hats and other physical sunscreen. In addition, reduce the mechanical friction on the treatment area. Acne itself is an infected wound, it is recommended to go to a regular medical institution for treatment, after treatment, you need to follow the doctor’s instructions for scientific care and maintenance, if there is an abnormal reaction, you can consult a doctor in a timely manner, so as not to cause adverse consequences.