Red Blister on Penis Head Ring and Foreskin

Hey guys this is making me worry...

Asian Male 34

A bit history, Ive been verry active in my sex life before with multiple partners, but not doing that after few years; which also include Masturbation for the past few months. Im in a relationship now for almost 3 years and stop sleeping around but sometimes when im posted overseas I paid for sex in a clean establishment and protected; less than 10 times (which now i will regret...)

I have been having this odd red sore/blister on the ring of my penis head (3 spots) that does not have any puss but have some blood and watery discharge after i injure it while washing and 1 spot on my foreskin fold.

Prior to this, I had kind of rough and semi dry sex with partner, and one of her back tooth is chipped and sharp.

Not sure if its related but couple day after that i have this sypmtoms. NO Fever, Flu, irritation but its a bit painful when come contact with underware and when washing or touching it.

Attached are the pictures.

Thank tou for your replies in advance and Ive been to 2 doctors and they do not see it as STD rather injury or friction caused. I will still do Blood test to make sure as im getting ready to settle down and be faithful for once...

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If two doctors think it's friction injury though, then they're probably right.  If you haven't been tested for STIs recently though, then it's probably worth getting checked out.  You could either see your GP, or if you're in the UK, you could go to a genitourinary medicine (GUM) clinic - google "GUM clinic near me" for details.

If you could update this thread and tell us what the doctors say, it would be appreciated.  Good luck.