Totally agreed that 西藥食得多,真係會削弱抵抗力,身體會差好多. I remembered a few years ago, it was on the news that HK children has the highest sickness rate compared to other developed countries. Because they gave medicines to children rathen than letting the body to fight back.
In Northern America, all doctors won't give a drop of cold or flu medicine to young child, unless they have fever. They suggest children to get as much rests as possible and drink lots of water. As these illnesses will go away after a week or so, depending on the child if he/she is again exposed to the illness' environment. If running nose occured, let it drained out, as medicine will only keep the mucus inside the throat, and young child seldome know how to throw it out. The mucus will made the child to cough. As I have experienced not to give medicine to my 傷風boy, the runny stopped at about 10 days with minor cough. I now only gave medicine if he has fever.