An STD Help Community

I recvd a bj approx 3 weeks ago and have had no std symptoms.
My partner after the last 2 times having intercourse develops a skin rash on her chest, arms, legs approx 24 hrs later.
After taking benedryl the rash goes away.
Should I be concerned about having transmitted an std?
Thanks

That's a hard one without testing. April is national STD awareness month and I would push for you and your partner to both get tested to make sure. You should be able to find a place for free or low cost testing in your area because of the observance.