Im goig to give as much info as possible.
It's slightly raised.
Red and sometimes skin coloured, smooth, doesn't look like a blister or a sore to me.
Painless, doesn't itch. skin immediately around the spot is flaky/dry
No pus or anything of the sort I only noticed it when urinating one afternoon. I don't have any other problems. Seems to be located on a vein and its been there as long as I've been aware for 4 days now hasn't gotten better or worse. Slightly worried. It looks quite similar to an insect bite of some sort. I've had one partner since I last got an std check which i received unprotected oral