There is no most effective way to lighten acne marks, you can choose the appropriate method according to the patient’s condition, lighten acne marks commonly used methods include general treatment, drug treatment, medical cosmetic treatment and so on. 1. General treatment: for shallow acne marks, usually pay attention to good sun protection, pay attention to facial cleanliness and hygiene, eat more fresh vegetables and fruits, avoid eating spicy and stimulating food, through the skin’s self-repair function, acne marks can disappear by themselves. 2. Medication: Usually you can take some oral antioxidant drugs, such as vitamin C, vitamin E, etc., to reduce the production of melanin; you can also externally use some exfoliators to remove acne marks, such as adapalene gel, vinblastine ointment, urea cream and so on. 3. Medical aesthetic treatment: If the treatment effect of the above methods is not good, you can choose laser treatment, micro-needle treatment, radio frequency treatment and other medical aesthetic technology to remove acne marks. For proliferative scarring type of acne marks, it can also be treated by skin resurfacing. It is recommended that patients go to the dermatology department of regular hospitals when necessary, follow the doctor’s instructions for reasonable treatment, and when using medication, strictly follow the doctor’s instructions for medication, not blindly self-medication.