Hello, some irregular beauty salons or irregular operations when changing faces may leave scars on the patient's originally smooth face due to technical and conditional reasons. Some cosmetic surgery is not done well due to disinfection and other operations. Facial plastic surgery sometimes leads to itching, pain and discomfort. At the initial stage, it will bulge on the skin surface, or it will be accompanied by abnormal pigment metabolism, which will affect the appearance. Severe contracture can cause facial deformity.