I'm not saying that this is for sure what's going on... but there is a pretty good chance - and don't think it means anything gross or anything, but don't take it lightly. I was cursed with coldsores back in my first year of highschool because an infected person took a bite of my pizza... so it doesn't mean anything dirty (but even still - I still get embarrassed by it sometimes...) - just be careful who you share with and learn the facts. If you have one, don't share, don't kiss, and definitely don't do anything 'else' with your mouth because it is possible to spread it to body parts other than mouths... and that would be SO much worse than just a coldsore!
Anndd if you truly believe it is just a pimple - and it is - you're lucky! So don't take your chances...
I hate this!!! I just want my normal lips back... :'(
My son had the same thing begin a few days ago. He had a small zit on his upper lip. Then boom, the next day, looked like someone gave him a right hook. Took him to the doctor who diagnosed a Staph Infection. Staph lives on our skin all the time and when it gets into a wound, it can becoime infected. Yes, it is very deep and the infection usually gets between the layers of skin and cause the great amount of swelling.
His doctor put him on Keflex (because it is such a broad spectrum antibiotic) and we have been alternating Heat (to draw out the infection) and cold packs (for the inflammation). It started to drain only about 24 hours after he started the anitbiotic. But be very careful. If the staph gets worse it can travel up the face, toward the eyes and sinus. It can also get into the blood stream and be very hard to get rid of. So please be careful, and the most important thing is WASH YOUR HANDS!!
Good luck!
Hope this helps someone and feel better :)