I had one huge one on my shoulder (like where the smallpox vax goes) and it was HUGE and ugly and I used three layers of 30% tca, killed. Then before it peeled I re-did three, then as it peeled I put Super Cop (only use copper peptides for scar remodelling) it is 95% smoothed now, red but smoothed, I could probably do another go and get rid of it all but want to let the surrounding skin calm and see what some scar creams do now.