Some pediatricians along the Gulf Coast are concerned that the side effects of the popular flu-fighting drug Tamiflu outweigh the benefits.  Those side effects can include vomiting, aches, and chills and the Food and Drug Administration said it has received reports of Tamiflu causing kids to hallucinate. One pediatrician said the best way to keep your kids healthy during the flu season is to make sure they get their flu vaccination, teach them to wash their hands, cover their mouths when they cough, and try to keep them away from other sick people.