Just wondering what wisdom might be out there in the MN ether! My 4 yr old DS is prone, particularly at the moment, to a cough, runny nose and wheeziness. Always starts with a dry cough, then runny nose then finally cough gets "wet" and his breathing gets wheezy. He started school in September and since then has had this same thing 3 times. I've twice gone to doctor with him, we got given asthma treatment and an inhalation treatment as well as cough medicine and nose drops...all ok as cures, but can any of you suggest what I might be able to give him all the time so as to boost him up a bit - echinacea? an overnight humidifier? - It always takes him several days to get better and then a week later I hear the cough again.... then we have 1 or 2 terrible nights of coughing, even with the cough medicine, I feel so sorry for him, and it takes its toll on us at night too. Any tips gratefully appreciated. Thank you.