I. Scar severity: 1. At the early stage of scar formation, the area of skin damage is small and the degree of scarring is light, so it is natural to recover faster; while the larger the area of the scar, the more serious the skin damage is, so it is natural to recover a little slower. 2, new scars and old scars, compared with old scars, old scars of the metabolism is slow, the physiological functions of cellular activity has been stabilized, the same size of the scar, the treatment of a new scar recovery effect may be better than the old scars. Generally speaking, shallow lesions, small scars, repair difficulty is light, the recovery will be faster; on the contrary, the scar area is large, the skin is seriously damaged, the repair difficulty increases, the recovery is slow, the natural treatment time will be longer. Second, scar formation time: newly formed scars, skin follicles, texture, skin collateral tissues have not been destroyed, and at this time the scar tissue is still in the active period, the treatment can be already appeared in the mutation of the scar tissue rapid repair, recovery will be faster. The formation of a long time scar, scar physiological functions of cell activity has stabilized, the time required for repair will be longer Three, personal constitution: due to the different constitution, each person’s skin on the absorption of drugs, physical therapy response to the degree of sensitivity is also different, if the skin has a strong absorption capacity, then the treatment time will be relatively shorter. If you are a scarred body, it will increase the difficulty of treatment and prolong the repair time. Daily care: After treatment, doctors will give patients some daily care and dietary precautions. If you don’t take care of the scars in the right way after treatment, scratching the scars during the recovery period, eating spicy and stimulating food, etc., it will affect the recovery of the scars and prolong the recovery time of the scars.