Gentian herb is mainly a heat-clearing and dampness-drying medicine, its effects in addition to heat-clearing and dampness-drying, but also laxative liver and gallbladder fire, water dispelling dampness, then we can deduce its role is more used to laxative liver and gallbladder fire, because we have in the clinical evidence, there are many people can be identified as liver depression and fire, liver and gallbladder fire, or damp heat in the liver meridian. This time we have a formula called gentian diarrhea liver soup, it is mainly this gentian herb, it is a main medicine, it can play this role. In addition, in the treatment of Western medicine, there are some jaundice type of hepatitis eczema and so on, this gentian herb is also a more frequently used Chinese medicine, but we should pay attention to gentian herb it is a rather bitter cold medicine, and very bitter, its use should not exceed the pharmacopoeia regulations, we generally only use up to about 10g, try not to exceed 10g, because we in the That is, there is a case of this record, on the previous case of patients reported an interesting thing, a patient, once a doctor gave it a gentian grass, there are 15g of a prescription, the patient drank, a bitter fainted, so he reduced the amount of this, found no longer this problem, so this gentian grass is very very bitter.