Could be a Strep Throat infection, which is only can be cured by taking an antibiotic. It best to go and get a check up, could be something more serious than just a Strep Throat. The sooner to get diagnosis and get the right treatment is the better, in order to avoid further complication. But a Strep Throat usually accompanied by fever, swollen lymph nodes in the neck, trouble swallowing, red and swollen tonsil. If you don't have any of these symptom, than it's not it.