I've done a lot of researching and it doesn't look like strep throat. It's not a lump, bump, or bubble. It's simply a white SPOT in the back of my mouth towards my throat, on the top. There's a spot on each side, but the left side appears larger and it's surrounded by an area of red. A few days ago I had small red bumps on the roof of my mouth... They looked similar to a rash. Again, from the researching I've done, it doesn't look like strep. I'm only 15 and I have been smoking for about 3 months (only about 3 cigarettes a day). This couldn't be cancer, could it? My whole family has been smoking since they were young. I have a sore throat sometimes, but no fever or any other symptoms. It doesn't look like anything too serious, just something that made me curious because it's definitely not normal.