So me and my sister were talking and I'm expecting and she has a 5 month old. She recently caught the flu. Ive been watching her son and she told me to give him his Tylenol every 4 hours to keep him from getting any fever, she's told me he hasn't had any so far. He's been talking Tylenol almost everyday for 2 or 3 months. I asked her if she's talked to her doctor about this and how it could effect his body and she simply just said no. So my question is this isn't safe right? I'm not trying to tell her how to be a parent I'm just very curious why she won't talk to her doctor about it, also why she thinks it will prevent fever if he hasn't had any.