2 years ago I had a cyst on my chin. It was pretty big and painful, and after a couple of weeks pus came out and the inflammation subsided. This in itself is not unusal for me, as I often get cysts just on my chin area. However usually they just leave the red/browny hyperpigmentation, which eventually fades.

This, however, has turned into what I assume is a hypertrophic scar, but it doesn't look like any photos I have seen. It is like a mini callus - raised, hard, scraggy textured skin. The top of it is white, like hard dead skin, and if you pinch it is stays put. But below is more red. It doesn't hurt. I have to cover it with concealer everyday which then just makes it look like a big spot (even though it isn't!)

The dermatologist told me (about 1.5 years ago) to use Dermatix silcone gel and it would heal it. It didn't. I do tend to pick my skin without consciously realising it (although have cut down on this), and have found that if I pick it off, it is then completely flat like a picked scab, but then grows back within a couple of days. (It feels like it needs to be picked off as it feels like a lump of dead dry skin - but I know it obviously shouldn't be picked off!)

I asked my GP last week and he said it is some form of fibrosis (which I think just means 'scar'?!) and to try keeping it very moisturised. I said I was attempting the salicyclic acid, urea acid, lactic acid route, which is the way you treat proper calluses, to see whether sloughing off the dead skin might help reduce it. I'm using an Avene acne cream with AHAs and DHAs in it, which is exfoliationg/hydration for acne, but I figured might work on both the acne and the scar.

Does anyone have any thoughts? Or had a scar like this? I won't be able to go back to the dermatologist for this as I'm in the UK, and as my acne cysts themselves are currently controlled by trimethoprim, I don't think I will be referred for something that is cosmetic and not that big.

Many thanks.