Zit on lip line that scares me

Patient: Hi, so yesterday I noticed what I thought was a whitehead zit grew on my lip line near the corner of my mouth. I put white fluoride toothpaste on it before I went to bed and when I woke up it was slightly yellow and somewhat dried up. I popped it and blood and what looked like yellowish ooze came out. Now it is scabbing over and my lip is somewhat swollen. I looked online to see what it was and I keep seeing everyone say it is a cold sore but I have not had any symptoms relating to a cold sore or was it like a blister like Cold Sores. Please help I can’t handle not knowing what it is

Symptoms: None

Doctor: