So about 4 days ago I got a cut on the left corner of my mouth. I didn't give my boyfriend oral or anything. So I put vaseline on it and it was gone the next day. Then the day after it came back and the skin looks inflamed and irritated... So today (3-4 days after) the other corner of my mouth is irritated and both sides hurt whenever I open my mouth to eat or speak. Do I have herpes? I haven't done oral to anyone and my boyfriend doesn't have anything bad in him.

Why would you have herpes, does your sex partner have it ?

Sounds like a normal infection