After chickenpox produces depressed scar, through surgery or drug methods can achieve some improvement, treatment methods are as follows: 1, surgical treatment: currently more advanced is the microcrystal scar removal method. The microcrystals are tiny crystals. The tiny crystals are sprayed on the surface of the scar with machinery, and there is also a recovery device for quick spraying and recovery to achieve the effect of polishing. After subjecting the scar to a second polishing, the scar epidermis regrows and the scar is reduced. In addition, grinding can be done with an electric drill bit, the disadvantage is that it will bleed, and the degree of damage is slightly greater when grinding with an electric drill bit; 2. Laser treatment: The commonly used laser is carbon dioxide fractional laser, this laser has a small degree of damage to normal skin, and using fractional laser to promote the re-growth of the scar epidermis can also achieve the recovery effect; 3. Medication: You can use decaying and regenerating medication to melt the epidermis and make it regrow and regain the recovery effect of the scar. The above methods are local minimally invasive treatment for local scar, and the recovery effect depends on the condition of the patient’s own skin tissue.