My baby is 2months. she coughs but doesn't have a fever. her pediatrician said her lungs are clear&fine. she's still coughing!? does vicks vapor work?

Cough: Cough is a protective mechanism that the body employs to prevent material from getting into the lungs.Any irritant that gets to the back of the throat (phlegm, smoke etc) can and should induce a cough.Sometimes even with good coughing,the lungs still get sick,and our bodies cough even more trying to clear that stuff out.Cool mist humidification will ease some of the irritation and MAY help lessen

Dry cough: At 2mo the primary cause of dry cough are irritants. House dust, fragrance, perfumes, detergent or cleaning products all leave scents that don't bother adults but irritate a babies nose & airway. A good nasal clean out with saline can remove much of this irritant load, but removing the offending irritants from babies life helps more in the long run.Vicks would likely make her worse.