Subcision risks along temples (temporal, buccal region) - Eastern Asian skin

Hello,Although mechanical subcision is a treatment option, we would encourage you to consider a deep fractionated laser option as well.  With lasers, we have the benefit of heat - a good thing.  This advanced technology has not disappointed with the controlled depth achieved for most types of scarring, while proving to be safe and effective for all skin types/colors.  Please see our below link for further information and before/after photos using the Sciton ProFractional laser for a variety of scars.

I have been performing subcision for twenty-three years to treat all kinds of problems in diverse locations and diverse skin types. Conditions that I have personally treated with subcision include acne scars, traumatic scars, chicken pox scars and cellulite of the thighs and buttocks. There are no contraindications to its use in all skin types, including in skin of color.  In experienced hands, bruising and swelling are the most common temporary reactions following treatment. The growth factors and wound healing factors, in fact, are desirable since they promote the new, native collagen and elastic fiber production that give rise to the improvement.  I have not encountered nerve problems of any kind, even when larger bore trochars are used on the extremities and certainly not with the much smaller bore instruments typically used for lesions on the face, even in the temple regions. Make sure that you seek consultation with a board certified aesthetic physician with expertise and extensive experience in performing subcision and insist upon seeing his/her before and after photos before agreeing to proceed. Best of luck. . 

Yes, temple region has lots of nerves, veins and huge arteries, hence knowledge of anatomy, depth, location and experience comes into play. I suggest you see a Plastics or Dermatologist for this procedure. The depth of subcsion can be controlled. The web reference below will take you to a resource. I embedded all the videos in one page to help. You will note how superficial I am in the temples, and how deep I am in other areas. 
Additionally remember that apart from subcision, there are other ways to treat acne scars- for example deep ice pick scars, and narrow box car scars can be treated with TCA CROSS peels, mixed scars, rolling, and atrophic scars treated with fractional devices such as Fraxel, fractional lasers, PRP and INFINI radiofrequency. Atrophic scars (depressions) can be treated with either fat grafts, or with HA dermal fillers. Tethered and anchored scars are best treated with surgery.

The majority of patients will have a collection of different scar types, and hence a tailored treatment METHOD will be best. Careful examination, especially under angled lighting with scar mapping will give you an understanding of what are the best options for your scars.

All the best,

Dr Davin Lim. Acne scar dermatologist specialist. Brisbane, Australia.