Back acne / irritation when scratched

Just wondering if anyone else has a sensitive skin /acne on back?

I have urticuria (dermatographism) or something similar.

I got back and forehead acne when on fin and Had it for a few months after I came off. It’s from raised testosterone levels I think.

Ive had some annoying back acne pretty much for the last year. Not heaps of pimples, but a few big ones that always come up and can be a bit sore… have been wondering if this is related to changes in hormones from fin/stopping fin

I got back acne when I first started Finasteride.