Weiting,
after many episode of cough phlegm bronchitis, i very scared liao. For western medicine, so far im prescribe amxol for cough, sabutomol for phlegm, basically have to give western medicine before it get serious if you do not mind giving western medicine. Cos better than leading to bronchitis then to asthma. I read apple is fine, i only give organic apple puree, i do not like anything from nestle so far. No chicken, no fish. I pat my girl back often as a therapy to make her phlegm loosen from lungs. Try to give warm water too.
For TCM, i think genesis tried yu guo, she say seems not bad. My fren recommend Bao yin dang from Eu yang seng, but also must give on early symptoms.
My fren asking me to try Jin Shin Jyutsu. He say her girl same issue as me. Basically the reason why enyu tends to get respiratory problem is due to her traumatic birth. eg, stress in womb, long hours birth, baby poo due to trauma/stress in womb, terence told me its very ke lian when she came out, they put a long tube to suck out the faeces. So it affected her overall well being, and one of the symptoms is serious colic when young that she cry for hours. So i am considering this treatment.
You decide what suits you, cos everyone is different. Some pple really dun mind western medicine, cos they feel that when older, can always "Bu" back with herbal soup etc.