Infection???

Ok so I have been feeling bad since Tuesday. My head hurts, making my ears feel full, and I thought it was a sinus infection. I went to the doctor today and she checked my sinuses and they actually don’t hurt today, just my head. She checked my throat and it’s a bit red and my lymph nodes are swollen. She automatically diagnosed me with a throat infection except I barely have a cough and really my throat doesn’t hurt. I have a small fever. Idk she gave me a prescription for antibiotics and I really don’t want to take them but I don’t know what else to do