Centella asiatica can be selected on the basis of the diagnosis and treatment by a professional physician, and the effect is better. It can be decocted and taken internally, and can also be used externally by pounding or twisting the juice of the product in the right amount, and the effect of the specific medication varies from person to person. Centella asiatica is a traditional Chinese medicine made from the whole herb of Centella asiatica, family Umbelliferae, which is bitter, pungent and cold in nature; it is attributed to the liver, spleen and kidney meridians, and has the efficacy of clearing away heat and inducing dampness, detoxifying and subduing swellings. This herb is used in treating jaundice due to dampness-heat, diarrhea due to heatstroke, gonorrhea (painful urination with blood in the urine or sudden interruption of urination), haemorrhagic gonorrhea (blood in the urine accompanied by pain), carbuncles and swellings (symptoms caused by qi and blood being trapped by evils and poisons and causing localized swelling), sores (a general term referring to a wide range of surgical disorders resulting from poisonous invasion of the internal organs), and stumbling and fluttering injuries. The herb can be decocted and taken internally, or taken in appropriate quantities and pounded or grated. Note that it should be used with caution in the spleen and stomach cold people, adverse reactions are not clear. Specific medication should be carried out under the guidance of a specialist, not unauthorized use of medication, so as not to delay the condition.