hi m daughter is 18th months old, has a swelling under her left ear, crying when she passes urine , crying with her feet saying they are ouch, i have changed the shoes, massaged her feet cant see anything, her temp has been going up and down, i have been giving her capol to help easy the pain, and plently of fluids, she only wants wet foods or mashed foods today, the swelling on her neck has increased today was not to big last night. otherwise she is bright and alert, playing as normal with crying every so often. she also has teeth pushing through that are quiet sharp.her bowel movements are fine. any ideas what this could be.