金银花 Jin Yin Hua, 板蓝根 Ban Lan Gen, 甘草 Gan Cao, 薄荷 Bo He
The four herbs above are currently being used in China to make a drink that prevents the flu due to H1N1 virus. Below is the full story from CCTV.com:
A type of Traditional Chinese Medicine (TCM) to prevent the A1/H1N1 influenza, dubbed the “flu prevention drink”, goes on sale on July 2, in every drugstore and hospital dispensary for TCM medicines.
The prescription was formulated and issued by the Committee of Experts for Flu Prevention and Control under Beijing Administration of Traditional Chinese Medicine to cope with the A1/ H1N1 influenza and the recent hot weather. The daily adult prescription consists of 3 grams of Honeysuckle, Woad root, Liquorice root and Peppermint. After it is mixed with boiled water, it can be gargled or drunk as a tea substitute. It can be used for seven consecutive days. According to experts from the administration, the prescription can be used by people of all ages, children and even pregnant women. If people don’t like the taste, they can add rock sugar or honey to it, without altering the effect of the medicine. It can be purchased in every drugstore or hospital dispensary for TCM medicines and a daily dose will only cost little more than one yuan.