Pus Pockets in throat, fever, aches, very tired?

Thursday morning I woke up with white pus pockets in my throat, fever, aches, and I felt really weak. I had my tonsils removed about 3 years ago and I haven't really had any problems with my throat since then. I went to the doctor, she didn't test me for strep or anything and she said I had Hand Foot and Mouth Disease and said there was nothing else to do because its a virus. Well by Saturday it had gotten much worse and I didn't have any signs of the rash that's associated with HFMD so I went back to the doctor. She didn't test for strep but she said she was going to treat it like I have strep and gave me Antibiotics and Pain Pills. My fever has gone down but it still comes back in the evening and my throat still looks the same, actually a little worse and I still feel tired and weak. Does anyone have any idea what else it could be? Should I try going to the doctor again?