1. Chemical Peeling: Only the top layer of skin cells is gently removed – treated with trichloroacetic acid or a-hydroxy acid. For very severe acne, doctors use phenol peeling, which usually involves general anesthesia administered by a cosmetic surgeon. For normal scars, you can have your doctor perform a trichloroacetic acid peel. These peels are very effective in healing pitted scars. 2.Fat injection: very deep scars caused by fat loss can be healed by fat injection. It is sometimes called fat injection. In this treatment, fat is surgically obtained from another part of the body, rinsed out, and injected into the scar to make the fat in the scar grow. The results of this healing usually last 6 to 12 months. Third-degree burns are treated in steps that will be produced from the second layer of the skin – the dermis. Since a person’s body “dissolves” collagen, another round of treatment may be performed in 3 to 9 months, depending on the site of the injection. This is because one person has been tested for an allergic reaction to collagen. Similarly, collagen injections are not yet safe for women who are pregnant or breastfeeding. To confirm whether collagen injections can help eliminate scars from acne, place a finger on one side of the scar and pull on the skin. If the scar disappears, it is probably suitable for treatment with this method. If the scar is severe, advice: avoid seeing the sun.