Here is a prevention formula prescribed by the Health Department of Shen Zhen City, Guangdong,China. It is used to boost the immune system and rid the body of infection. Its name is: Infuenza Preventing Herbal Tea:
huang qin 5g
huang qi 10g
huo xiang 10g
fang feng 5g
ge gen 20g
sheng gan cao 5g
Simmer with water for 45 minutes. Drink as tea twice daily for 3 days.
Dosages for children should be quartered. Pregnant women should consult with their doctor before taking this formula.
I know, it sounds very complicated. So, ask your practitioner about it!