Subcision is a procedure that releases scars that have become stuck to the deeper tissues and bound down. When a scar forms, new collagen is produced. It involves inserting a small needle into your skin to release the acne scar from the underlying tissue. This allows your skin to rise and diminish the appearance of the acne scar.
The results of subcision can be immediately visible sometimes. Usually, there is quite a lot of swelling from the anesthetic. This can take a day or two to settle. The results are usually seen within 1 to 3 months. The skin continues remodeling for up to a year after treatment so the ongoing benefit can be seen too.