Acne scab after picking off the hole is generally picking off the local inflammation invasion of the tissue, shallow general without treatment can gradually recover, deeper may form pits that scar, this situation can be repaired through fractional laser treatment, water light needle and other ways. 1. Fractional laser treatment: it is a special type of laser treatment, through the multiple small holes produced during the treatment, the heat energy will be directly applied to the lesion area, prompting collagen regeneration under the skin, so as to achieve the purpose of repairing acne pits. 2. Hydrographic needle: It is a commonly used cosmetic method, which can inject repair drugs to activate the repair system of the skin and promote the rapid proliferation of local fibroblasts, so as to achieve the purpose of repairing acne pits. The depth of acne pits will directly affect the treatment effect, it is recommended that the patient to the regular hospital in a timely manner, in accordance with the doctor’s instructions standardized treatment.