influenza
"My 9 yr old son got sick with the flu (confirmed by swab) on a Thursday afternoon. Before bed we gave him the Tamiflu. Overnight he was very sick with a high fever, vomiting and headache, but the next morning after his second dose of Tamiflu was already starting to feel much better, fever a lot lower and eating soup. The medicine is easier on the stomach if you eat something with it, otherwise it can cause stomach/digestion distress. Like others who posted, was skeptical about using it, especially for a child, but so far its worked well."