Boiling water and taking bath with Yin Chen has some effect on reducing jaundice, but it can not cure the disease and is not suitable for all jaundice patients, jaundice patients need to be standardized treatment under the guidance of professional Chinese medicine practitioners to identify the evidence. Yin Chen is bitter and cold in nature, belonging to the liver meridian, gallbladder meridian, spleen meridian and stomach meridian, it has the efficacy of clearing heat and removing dampness (removing heat and dampness in the body), and relieving bile to reduce jaundice (dredging the bile ducts of evil qi, eliminating jaundice), and it can be used to treat jaundice, yellowish and distinctive patients. The treatment of jaundice with Yin Chen usually requires decoction of the soup for internal use. The decoction and fumigation of Yin Chen is usually used to treat patients with itching and wet sores caused by damp-heat accumulation (dampness and heat evils accumulate with each other in the body) of the skin. Therefore, patients with jaundice need to standardize the use of Yin Chen under the guidance of a professional Chinese medicine practitioner. For patients who are jaundiced but with a dull yellow color, it is not advisable to take a bath with boiled water of Yin Chen. During the treatment of jaundice patients, do not eat greasy, cold and spicy food. Patients with jaundice need to be treated under the guidance of professional doctors and should not blindly use Herba Euphrasia to take bath.