Usually, acne marks and pits are complications of acne and exist in various manifestations, mainly including black acne marks, red acne marks, atrophic acne marks and hyperplastic acne marks, etc. There are differences in the treatment of the four. Therefore, it is recommended that patients visit the hospital to clarify the type of acne marks, under the guidance of professional doctors, choose the appropriate treatment or maintenance means to gradually improve the symptoms: I. Black acne marks 1, L-vitamin C-type essence plus ultrasonic import: can accelerate the black acne marks recede; 2, fruit acid peeling: on the one hand, inhibit melanin production, on the other hand, promote skin metabolism, accelerate melanin elimination. Red pimple marks 1, strong pulse light: can shrink microvascular, have the effect of light scar, but also can increase the dermal layer of collagen, so that the depression is no longer obvious; 2, drugs: under the guidance of doctors can use the relevant scar removal drugs for treatment, such as mucopolysaccharide polysulfate cream. Atrophic acne marks 1.Fruit acid resurfacing: use high concentration of fruit acids to peel off skin keratin, prompt the aging keratin layer to fall off, accelerate the renewal rate of keratinocytes and few upper epidermal cells, and promote the proliferation of elastic fibers within the straight skin layer; 2.Filler method: for deeper depressions, fillers such as autologous fat can be injected to make the depressed part elevated so as to keep flat with the surrounding skin tissue; 3.Fractional Laser: Fractional laser is needed according to the depth of skin atrophy, however, due to the large laser dermabrasion wound, improper post-operative maintenance may cause skin reddening and blackening. Fourth, hyperplastic acne marks 1, local subcutaneous injection: for hyperplastic convex scars, drug injections can be directly injected into the acne scars subcutaneously for treatment, drug ingredients are generally steroids; 2, laser treatment: for smoothing hyperplastic scars have a certain effect.