influenza
"My 11 month old son had a fever of about 103. After a strict rotation of Motrin and Tylenol (as directed over the phone by our pediatrician) we managed to keep the fever down until the next morning when we could get to the office. He tested positive for influenza, and the doctor prescribed Tamiflu. I was a bit skeptical because of my son's age, but followed doctors orders. Twenty four hours after the first dose, my son was chasing the dog around the living room at full speed, giggling relentlessly. I made sure to always give the medicine on a full tummy, and he didn't seem to have any unpleasant side effects. I am definitely sold on this medication."