Swollen lips

Patient: I had this sore on my lip it got really swollen and it turned into scabs and I thought it was just fever blisters but then after that I made out with my boyfriend and I felt my lip getting swollen in that area and on the oposite side idk what it is and I’m very scared I did give oral sex once but that was a looong time ago and the parts were my lip is swollen turned purple its still swollen after an hour ago we made out what could it be I’m terrified

Doctor: