Caution! Do not give aspirin to a child or teenager who has the flu
Never give aspirin to children or teenagers who have flu-like symptoms - and particularly fever - without first speaking to your doctor. Giving aspirin to children and teenagers who have influenza can cause a rare but serious illness called Reye syndrome. Children or teenagers with the flu should get plenty of rest, drink lots of liquids, and take medicines that contain no aspirin to relieve symptoms.