Ever since my dad quit smoking?

about 9 months ago, he gets sick, at least once a month, either with a bad case of the Flu or a bad cold...what can be causing this, and is there anything he can do to keep from getting ill..
He excercises on a daily basis, and eats healthy...Ever since my dad quit smoking?
It will take your dad's immune system to rebuild itself. Your dad needs to continue to eat healthy, excercise and take his vitamins, drink lots fluids.
Maybe he didn't feel well and that's why he quit, but you just didn't know it?
It sounds like your dad has the smokers cough. He is suffering from bronchitis he may need an inhaler. And he might have changed his diet. Normally when people stop smoking they substitute their diet from cigarettes to ice cream. This may be the cause.
he fine. get him some cough syrup
when I quit smoking I did basically the same thing I think it was the stuff the cigarettes did to me coming out after a year I was fine and now I feel better than ever and Its true your dad could have been feeling bad before he quit and that maybe why he quit He might not be telling you everything... =)
He'll be fine maybe needs to see a doctor remember flu and cold season is here he might just be getting wind of that I have the cold as we speak...