my son has a large white spot on the left side of his throat accompanied by redness, and major ear pain. We tried to treat at home, but didn t get better. Took him to be seen and they did a quick strep test which came back neg. but told him something is growing back there. He has been on the antibiotic for a few days now, not feeling better. I began to research a bit more, and seen that you can get canker sores on your throat. Read that antibiotics could make this condition worse. Want to know if he should stop the antibiotics since he is not getting better?