Hi ,my kid is 5 yrs old ,he has  continuous cough once he sleeps at night and throws up lot of white foam mucus and this is happening daily only at night.day time he will be fine once or twice ge coughs but not like night .i have taken him to pulmonologist and took montair 4mg tablets and some inhalers till i used those he was fine ,once i stopped again it started.now I dont know  to whom  i should consult .and what to do as I don't want to take lot of medication .any suggestions pls