The symptoms you describe and the doctors diagnosis seem to tally; hence you should not be worried. Usually, you need to take the full course of antibiotics before your symptoms get relieved. Unless there is drastic worsening of your condition from the day of your visit to the doctor or you have got any additional symptoms between your visit and now, you should not be worried. The tablet Aleve
prescribed by your doctor should help in relieving your headache; take this tablet after you have eaten something.