So im doing a 22% tca peel, the scars are only on the middle of my cheeks and the rest is clear (jaw line, upper cheeks). Should i put a layer all around this area to avoid streak marks(hyperpigmentation on the edges of where the tca peel ended) or would it heal fine just a bit lighter to the rest of the skin if i just apply it to the middle of my cheek?

I know that 15% tca healed fine when i used it only on my middle cheek it just healed a bit lighter in skin tone which was temporary but no streak marks. Just want to know if a 22% would heal the same as the 15% did.

Im also 3 and a half months off a 5 month accutane cycle