scars are the repetitively occurred phenomena on humans which are not bad until they make their permanent signature on body. this is a natural part of healing procedure after an injury. there are multiple classes of scars; keloid scars, contracture scars, hypertrophic scars, acne scars etc.
various creams and ointments can be used as a treatment option but they are not that much effective. instead, a surgical removal is a best treatment option.
the procedure varies to treat different kinds of scars such as skin grafts, excision, dermabrasion, and laser surgery etc. the procedure of skin graft involves removal of skin tissue from other body parts and to implement them in the scar areas, best used in case of people having hard burns.
some scars also poses functionality limitation, surgery can be a best solution here. however, if the scar has occurred from any recent operation, it is better to wait for a year before going for any scar treatment because many scars fade away automatically with the passage of time.