I have a 26 month old toddler. who the other day developed a fever was taken to the doctor he put her on bacrtim for uti without a urine sample. since then she has developed sores in mouth like canker sores, she is cutting molers and dentist said mouth not large enough to support new teeth so they are acting like braces. glands along jaw line are swollen and hard both sides but not on top of jaw like mumps. tylenol and ibuprofen are not working. she is going to doctor this afternoon different one. she is not eating or drinking much.