I’ve been stressed for weeks

Men's health
1

hello everybody
i had sex on jan 31 and i noticed afterwards that i had a red mark it didnt burn when i went to the bathroom no discharge or anything the skin peeled off but it came back in a couple days and after that its just looked like this ive been stressing and lookong to see what it is please help me!! i went to take a test for chlamidia

2

did you get results back?
t look like a rub mark

3

It is scar tissue, I doubt any STD test will comeback positive.