Hello,
This could be a pretty obvious question, but I have a friend with whom I enjoy foot fetish activities - kissing and sucking on her toes, etc. About one day after our last hangout, I noticed a sore on my upper lip. It didn't really hurt, but I felt it come one very quickly - It actually came out about a minute after I finished eating a pear.
My question is, could this be a syphilis chancre or a cold sore, or something connected to eating a hard pear with dry lips? I've read on the net that cold sores and syphillis cancres take at least a few days to a week to come out, but wanted to ask your opinion. Thanks!