Can someone help? Really worried about these red patches

hi all i keep getting these red apots/blotches coming up, they clear for a couple of days then come back. i have had all STI checks and a check for thrush, all came back negative. my GP said it looks like friction. but i dont think it is. can anyone help?

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this has been going on for months

going to try come off the creams and see if it helps

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