I had a sore throat in April, and the doctor gave me amoxicillin believing i had strept throat, without swabbing. The antibiotics didn't work until day 7 out of 10, and a few days after i finished the antibitocs it came back. A different doctor prescribed me cefaclor which worked after using it for 1 day. When I finished the prescription, a day after i had a sore throat. The doctor prescribed me cefaclor again, and once again when I finished the prescription, the sore throat came right back. I went to the see the doctor again, and he believes I have an allergy, and told me to use chloraseptic spray. He also swabbed my throat for strept, which came back negative. There's no way it could be an allergy as my boyfriend has the same problem as me. The pain varies, and I have white bumps on the back of my tongue. What could I have?