That is truly possible.

I had something similar, rash but no other signs of allergic reaction. It looked horrible but felt fine. The dr thinks it was from the adhesive used to tent the surgical area. I was told to try Benedryl then report back if nothing changed but it handled it right away.

It sounds like some kind of reaction. Maybe the meds your taking. I would look into it. Better to be safe.

Call your doctor, it could be an infection and that can be super dangerous.