Skin injuries often leave souvenirs in the form of scars, so it is worth taking care of the skin after the wound has healed. What should a properly healed scar look like? When to start using scar preparations? What to apply to scars after surgery and caesarean section (e.g. silicone gels, creams with onion extract, scar ointments with allantoin and heparin)? What substances (e.g. vitamins A and E, heparin) reduce the visibility of scarring? What treatments will allow you to get rid of acne scars (e.g. microdermabrasion, chemical peeling, fractional laser)?