Damp-heat underflow (dampness and heat invading the intestines, bladder, pubic area, lower limbs, etc.) may cause impotence and premature ejaculation. However, impotence and premature ejaculation are not always caused by damp-heat underflow. Impotence and premature ejaculation caused by dampness-heat injection is often accompanied by eczema and itching in the pubic area, frequent urination, astringent pain, or foul-smelling stools. Gentian Liver Pills are commonly used for treatment. Gentian Diarrhea Pill has the effect of clearing the liver and gallbladder and inducing dampness and heat. It is used for dizziness and red eyes (dizziness and red eyes) caused by damp-heat of liver and gallbladder (the accumulation of damp-heat in the liver and gallbladder), tinnitus and deafness, dystocia and bitterness of mouth (pain in the area of dystocia and bitter taste in the mouth), redness of urine, and wet-heat leucorrhea. It should not be taken for a long time by those with weak spleen and stomach, and should be used with caution by pregnant women and those with stomach cold. If there is any discomfort, it is recommended to consult a doctor promptly. If medication is needed, it should be diagnosed by a doctor and regulated according to the doctor’s instructions.