In China, the traditional Chinese medicine approach is used in formulating natural herbal teas and they are very popular in enhancing health and addressing core issues within the body; e.g. formulated recipes like hawthorn plus oolong / pu-er are used to address the high fat level in the bloodstream. The Chinese term liang cha, means "cooling tea", and the Chinese drink it to cool down the body when it has become overheated due to weather or sickness.
In Sri Lanka, herbal teas have a long history within the local tradition of indigenous medicine. Iramusu (Smilax regelii), beli (Bael), ranawara (Senna auriculata), polpala (Aerva lanata), weniwel (Coscinium fenestratum), and kothala-himbutu (Salacia reticulata) are among the many plant species used to make herbal teas, which are used to treat a wide variety of ailments. The widely used "paspanguwa" (translated as five-portions) is a common local remedy for colds and fever containing the five ingredients pathpadagam (Mollugo cerviana), katuwelbatu (Solanum virginianum), koththamalli (coriander seed), thippili (long pepper), and inguru (ginger), often served with a sweetener of sugar or jaggery.
Herbal teas are beverages made from the infusion or decoction of herbs, spices, or other plant material in hot water.
Herbal teas can be made with fresh or dried flowers, leaves, seeds or roots. They are made by pouring boiling water over the plant parts and letting them steep for a few minutes. Seeds and roots can also be boiled on a stove. The herbal tea is then strained, sweetened, if desired, and served.