DD started with a cold 6 weeks ago and still has a very snotty nose and rattley sounding chest. Went to doctors 2 weeks ago and usual, can't give anything to help. Tried Karvol, albas oil, nasal aspirator, saline drops, snuffle babe and none of it seems to help. Its worse at night, her snoring is louder than DH! She miserable with it. Any suggestions as to how to help her?