It's been three weeks since I've had strep, and the red spots at the top of my mouth have not gone away even though I was given a stronger antibiotic. I still see faint "lines" of white on my tonsils. I've also noticed that there is a yellow color under the skin of my tonsils, and I know it's not tonsil stones. My tongue has white tastebuds on it, and some of the tastebuds have started to come off. I don't feel sick at all though, which confuses me. I went to my doctor to ask for his opinion, and he says I'm fine. Anyways, I just want a second opinion.