White spots on tonsils and on throat behind tonsils

Hi, i got throat pain two days back and I visited the general physician, i am prescribed Amoxicillin for 3 days. However i just examined my throat and saw that there are white spots on tonsils and behind them which has got me worried. I just want to know that do they go away after infection is treated or they stay there? I am scared as hell right now.

dont panic it sounds just like a bacterial infection.