Hi,
Subcision releases the underlying scar tissue and stimulates new collagen formation from wound healing. Hence results will be seen even after a single session although results are delayed for several months until the new collagen is formed. Repeat subcisions done judiciously will add to the results seen.
Fillers used in conjunction with subcision results in immediate filling-in and lifting from the injected filler substance while the new collagen is being formed from the subcision. Hence immediate results are apparent even after the first session of combination treatment. Recognize that as the filler substance injected under the scar gradually disappears, only the new permanent collagen due to the subcision remains.
Also, while subcision alone may work well with a variety of atrophic acne scars such as rolling and boxcar type scars, a combination of subcision with filler is best suited mainly for rolling scars.
A thorough assessment of your acne scars by your preferred aesthetic doctor will help decide on your suitability for the various acne scar treatments available.
Hope this helps!
