, not thinking, the next morning I remembered the blister. I squeezed it 3 or 4 times preety hard and some liquid / blood came out of it. My question, is this considered an open wound and should I be worried about hiv infection if the girl were positive? I do not know if she is or not. I went to the doctor on Monday and they gave me a test, it was negative. Three weeks later I got sick and went to the doctor they swabbed my nose