S.K.
just a quick fyi (i worked for a dr for 5 yrs) you cannot get sick from change in weather or the air conditioner or anything of that sort. getting sick is from being exposed to a virus or sometimes bacteria.
but i suggest saline nose drops, a humidifier, and lots of love. i read online that normally the first year of a babies life they get 4-6 colds.
i know how frustrating it is. my son is actually getting over strep throat right now, weird b/c i'm a SAHM and we haven't gone anywhere besides the grocery store:(