I recently had a sexual encounter with a prostitute in (—) about 5 weeks ago. I wore a condom for receiving oral sex off her and during sex but I did give her oral sex.

I have been tested at the two week mark and was negative for all STI’s I’m currently waiting on results from a 4 week test.

My main concern is a have a red lump on my neck which developed about two weeks ago. It hasn’t gone anyway and barely improved since I initially thought it was a pimple so I tried popping it several times. It leaked clear fluid for a little while and bled a lot when I eventually popped it. Since then I have picked at it a lot but nothing else has came out. It layers itself with dead skin a lot but that’s about it.

I am concerned this could be a chancre from what I’ve read online these normally appear where you’ve had unprotected sex and rarely on the face etc. Is it possible to have one on the neck?

If so could other people catch it by simply touching it with their hands, arms or another part of their body via no sexual contact at all?

The lump is about two inches down from my ear and is completely painless. Slightly raised above the skin and I wouldn’t classify it as an open sore but I am not sure.

Thank you

Age: 23
Male
Medications: None