When my lo sleep I can hear the sound like inside his throat there is pheglm, anyone any idea how to get rid of it ?

Hi! Not sure if this is the same case for your child, but you can refer to this article: http://www.chrisjohnsonmd.com/2009/06/22/wheezing-in-infants-and-toddlers-what-to-do/ The author (a doctor) highlighted that wheezing is more of a symptom. Hence, I think may be good to consult your doctor for some suggestions.

flumicil works for me! otherwise try yuguo TCM at kembangan. they are really good and effective. but prepared to wait and spend a couple of hours there.

It sounds like mucus backflow too. You can consider using a diffiuser in a room to provide some moisture. and let baby sleep slightly elevated