Physical treatment of acne vulgaris and acne scars

Acne is a common skin disease and caused by extremely complex factors.It has a high incidence in the normal multitude,specially in the youths.Acne often appears in the face.It can form comedones,papules,pustules,nodules and scars.Active acne and its sequelae,especially permanent scars,may cause longstanding physical and psychological harm to patients.So treating acne and acne scars is very important.Now,more and more physical approaches are used to treat ance patients,and show good effects.This paper focuses on the physical treatment of acne vulgaris and acne scars.