Hi,
When my son was ard 1 year+, he fell sick frequently. The sickness is flu, cough and phlegm. I feel that western medicine is a temporary cure but not long term. So I bought cordycep for him. Firstly, I bought from Medical shop at Rivervale Plaza. They don't fully use cordycep only, they mixed abit of other herb for the respiratory system like almond etc. He took it for almost 6 months and I see great improvement. No more morning flu(sensitive nose) and those common illness. My son do attend school twice weekly, but not childcare.
Such tonic isn't medicine so you cannot expect to see result in short term, got to start young also so that they can build up their immune system.
I bought Eu Yang Seng's before... grind into powder and add into his soup. Cos Eu Yang Seng's is very concentrated so the taste tends to be stronger. You can try adding to soup and dun use to much if your child's taste buds are very sensitive. Mostly soup can cover up the taste leh.
I don't quite like the one from Lifestream Cordyceps Stroma Gold cos it is yellowish in colour so it tends to make my porridge or soup changed to yellow. Eeek... slightly stronger taste also. Think you can continue on Eu Yang Seng's or you try the medical hall at Rivervale Plaza.