My baby is sick all the time, could secondhand smoke be to blame?
Babies who are sick all the time need to be evaluated carefully by their paediatrician, but it would be very appropriate for you to ask your child's doctor, "do you think these illnesses that my child has have any risk associated with second-hand smoke or with smoking during my pregnancy?" It might be your smoking, it might be your smoking plus smoking of other people this child is around. I think the upper respiratory symptoms that your child has is what you should concentrate on most importantly because that is where the toxic affect of a child exposed to second-hand smoke is most noticeable. But that doesn't mean that you shouldn't ask your doctor about other symptoms too because children can respond in a variety of ways, with having colic, with having other symptoms that are just because of the irritability of having to put up with second-hand smoke in their breathing.