hmmm, will the p leave scars? I have never had any myself - just white skin with less pigment due to the lack of suntan in the exposed areas.
2 scar reducing treatments are silastic gel and a new one Dermatix gel which is basically a silicon cover - not to be applied to broken skin etc. (£30ish for 15g)
I would ask your derm/gp/pharmacist for advice.