2. Rhubarb tea is mainly composed of rhubarb, black tea and sugar. Rhubarb is a commonly used Chinese medicine to treat jaundice caused by damp-heat in liver and gallbladder or dysentery caused by damp-heat in intestine. It also has the effects of dredging meridians and removing blood stasis, and can be used to treat irregular menstruation caused by blood stasis. In addition, it also has the functions of reducing blood fat and resisting infection, and can inhibit the growth of staphylococcus or streptococcus.