Recently I had a reaction to a medication - lisinopril. I've been taking the medication for almost 2 years. Thinking back, I now realize I've been experiencing symptoms for some time i.e swollen hands, blurry vision, constant fatigue, burning around eye lids and mouth, etc. The most recent issue that made me stop taking the medication was my tongue was very swollen to the point I was biting both sides of my tongue. Out of no where, I developed a round blister type growth in my pubic area (not my penis or scrotum). It looks like a smaller wart (I don't believe it's genital warts) that was somewhat indented in the middle. It partially popped on its own and healed almost immediately. Then one day, when I got out of the shower, it looked like it was going to pop, so I popped it. It bleed and then scabbed over. It seems to be healing. There was never any pain, itching and I wouldn't have ever known it was there if I didn't spot it. Since I noticed it I've been scared not knowing where it came from. Could this be another reaction to the medication? Could it be an STD? I don't know. Can you help?