I am pretty sure that is a fact. I am not sure about fat storage location, but I am sure about body shape. Hope this helps :)
Water because that is what you are 75% mostly made of
The best thing for any illness is sleep. For a sinus infection, a good thing to do is to put a warm compress, like a towel or washcloth, on your face and leave it there. This can improve drainge of mucus and reduce swelling