Is it ok to pat your baby back to help to spit out (to be exact vomit out) phlegm in her chest? My baby is just 4 mo, and have been coughing so bad. We are using nebulizer but I don't see its helpful as she is still coughing so bad. I am told to keep a watch till Friday to see if coughing will continue and becoming bronchitis. Any mum can share their experience? Thanks !