My son had a fever for four days and developed a dry cough so we took him to the dr. Who said he had swollen tonsils and white specks on them. Gave him amoxicillin for 7 days. After being on anti biotics for 4 days, he felt better but his cough was worse and his sore throat was horrible. After 5 days, I checked his throat and his tonsills were STILL swollen and had white specks on them. His symptoms have started to clear up except this awful sore throat. Should I take him back in, or is this most likely just a virus?