Subcision is a process used to treat deep rolling scars, sunken scars left behind by acne, chicken pox or other skin diseases. It is also used to lessen the appearance of severe glabella lines, though its effectiveness in this application is debatable. Essentially the process involves separating the skin tissue in the affected area from the deeper scar tissue. This allows the blood to pool under the affected area, eventually causing the deep rolling scar to level off with the rest of the skin area.
Sometimes immediate injection with Platelet Rich Plasma (PRP) from your own blood or the use of dermal fillers can further improve the appearance of deeper sunken scars more rapidly
Once the skin has leveled, treatments such as fractional laser resurfacing, microdermabrasion or chemical peels can be used to smooth out the scarred tissue.