Depressed scars, are scars caused by defects in the dermis and subcutaneous tissue of the skin. Acne, surgery, trauma, infection, chicken pox and smallpox are common causes of depressed scars. These causes lead to defects in the dermis and subcutaneous tissues of the skin, and the subsequent loss of collagen and elastin during the healing process will leave permanent depressed scars. For scars, prevention is better than cure. Now we give you the following common sense of prevention regarding the occurrence characteristics of scars: prevention of scars is more important than treatment of scars, usually pay attention to safety, avoid skin irritation and damage, and to avoid the invasion of bacteria to the skin, towels should be dried in the sun more often. Women who love beauty should try to select cosmetics to avoid the stimulation of skin damage by poor quality cosmetics. At the same time we should pay attention to balanced nutrition, usually eat more high-protein food, high protein has a certain promotion effect on the activity of the skin. It can increase the smoothness of the skin. 1, can be combined with topical whitening maintenance products combined with fruit acid products to enhance the efficacy, on the one hand, inhibit melanin manufacturing, on the other hand, promote skin metabolism, accelerate the elimination of melanin. Such as L-vitamin C, andrographolide, A-acid, tric acid, etc. 2, the mask for the recovery of acne marks also has a certain help, on the one hand, the mask can improve the surface temperature of the skin, in the face of self-help circulation, to help the skin tone, while the repair nutrients contained in the mask can be better absorbed by the underlying skin; on the other hand, diligent mask helps accelerate skin metabolism, to help the skin repair itself. 3.During the treatment period of pulsed light, it can be combined with fruit acid treatment and L-C introduction, how to combine depends on the skin condition at that time. Pulsed light has an improving effect on the treatment of pigmentation, especially red spots, because pulsed light originally has the function of eliminating microvessels. However, since microvessels are proliferated in the skin at different depths, treatment-wise, doing it once will lighten it once, requiring multiple treatments. 4.After the medical aesthetic treatment for depressed scars, the most important thing is the maintenance after the treatment. Only good and correct maintenance can make the effect of depressed scar repair maintain its long-lasting effect. 5, after the treatment, first of all, we should pay attention to sun protection, a lot of ultraviolet exposure can make your recovery skin pigmentation, so that the acne scar color is heavier and stay longer, so it is not suitable to carry out outdoor activities for too long. 6, for the treatment time of fruit acid peeling or laser resurfacing, it is better to choose the autumn and winter season, but if you can do a good job of sun protection, in fact, you can carry out depression scar repair in every season. 7, in terms of food, depressed scars can be supplemented with some food treatment that has the ability to help even skin tone and accelerate skin healing, such as: lily, mung beans, silver fungus, lotus seeds, barley, etc. all have the effect of making clear fire and even skin. Nuts include almonds, walnuts, sesame seeds, etc.; vegetables and fruits containing vitamin C and vitamin A, such as cauliflower, cabbage, green vegetables, tomatoes, lemons, strawberries, kiwi, etc.