So I had an encounter (unprotected oral) with a CSW, 8 weeks later I had a some chancre on a pubic area, it’s start with a painful papule, and then turn to an open sore, it’s red and wet in the middle, could this be a syphillis chancre ?
Without seeing it, there is a chance yes. The sore forms on the entry point on the virus so it depends where the "chancre" is. However there is NO risk for HIV and to be fair, even syph is low risk from oral.
With the time frame, the best bet is to go get tested now.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. MedHelp is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.