Tw picture of foot.
I have a rusty coloured patch turn up on the heel (bottom) of my foot. Definitley not stood in anything, no tan, no new shoes, it's a bit tender too. But it doesn't look like dried blood. Rusty orange. I kept getting patches a couple of years ago and it would always disappear before I could get a GP appointment. Then it stopped. But looks like it's started again. I have done the usual goggling. And no I haven't eaten any carrots or used any new products.
Any ideas please?