So I went to a drive in movie with my boyfriend after a day of sharing water bottles with my family and a Pepsi with my grandfather. We were in the back of the truck and were making out pretty intensely on and off for about 2 hours. Halfway through, I felt a bit of a burning sensation on my lip. I thought that it was just chapped  lips which happens often when I make out. But I got home to redness on my lip and it was painful to touch and I was like oh great, cold sore.. So I peeked at it a bit and when I pulled my skin tight, there was a small white bump but with no fluid in it. It was just flesh and it looked kind of like a very small mosquito bite. I iced it, put milk, salt, sunscreen, and aloe Vera on it. Fell asleep for 3.5 hours. Woke up to a weird, but not uncomfortable tight sensation on my lip. The redness was gone. The bump is sort of there but it is the same color of my lip and you can't see it unless you are really looking for something. My dad is a doctor and he looked at it and said he saw nothing. I can't tell if I had a cold sore and nipped it in the bud before it could explode, I had a bug bite of some sort, I'm in a weird stage of a cold sore (never had one before!) or something that idek! It kinda stings right now but that's because I applied sunscreen and aloe Vera so I might be mistaking the cold sensation for a sting. I'm also using lavoclen-4 face wash but WITHOUT a prescription, I found it in my bathroom. Could this just be a side effect? The "sore" is on the bottom of my lip.