What is this on (tmi dirtying photo)

I have this bump on my outer lip what is is

I thought it could have just been a pimple and Iv been trying to pop it. But I can’t get it to. Idk what it is.

Update: went to the doc. He said it was ingrown hair and I had an allergic reaction to the nair hair removal bc I also had a rash on my leg. I had blood work and a bunch of stuff done. But anyway I’m all good and don’t have a STI.