Acid brushing is a method to help remove excess waste keratin from the face by changing the acidity of the skin surface, and is a newly emerged means of skin care in recent years. This is because the relatively high concentration of acid will stimulate the facial skin, promote metabolism, metabolize a large number of pimples accumulated deep in the skin out of the skin surface and silted up at the mouth of the hair follicle. It is usually a normal discharge process and need not be overly worried. A. Treatment If the number of acne on the face after acid brushing is excessive, the degree of redness is serious, and it is accompanied by pain and itching, it is recommended to seek medical attention and use medication under the correct guidance of a doctor. Common topical medications for acne treatment include retinoic acid, benzoyl peroxide, nonanedioic acid, etc. If topical application is not effective, oral antibiotics and isotretinoin can be chosen for treatment. For patients who are unable to subside for a long time, or have high requirements for facial image in the short term, they can also choose photodynamic therapy, laser and other treatments. Precautions 1. Avoid scratching, grasping and picking with your hands, especially in the early stages of acne production when the skin surface is not fully exposed to avoid physical damage and permanent scarring; 2. Pay attention to gentle movements when washing and nursing to avoid acne rupture, and it is recommended to use warm water for washing to reduce the stimulation of facial skin. The use of cosmetics should be minimized to ensure basic cleanliness and moistness, and moisturizing products can be applied in appropriate amounts to prevent acne from drying out and cracking; 3. Avoid staying up late, regular work and rest time, and ensure sufficient sleep, while maintaining a relaxed and stable mood to cooperate with treatment with a positive and optimistic attitude.