Toadstool is an alias of Plantago Ovata, which has the effects of clearing heat, diuretic and diaphoretic (to improve the problem of dribbling in urine, and the problem of small amount of urine not passing), expectorating phlegm, cooling the blood, and detoxifying the toxin. Since Plantago Ovata is cold in nature, its diuretic effect is strong, so it should be used with caution for people with kidney deficiency and slippery semen. The use of drugs need to recognize the evidence, it is recommended to take under the guidance of a professional physician. Psyllium, sweet taste, cold nature. It belongs to the liver, kidney, lung, small intestine meridian. Clinically, it is used for hot shower and astringent pain, edema and urination, summer dampness and diarrhea, phlegm-heat cough, vomiting and epistaxis, carbuncle and sores. Plantain is often used in combination with Mutong and Poria in the treatment of burning heat and astringent pain in urine, edema and low urine output; summer dampness and diarrhea (diarrhea caused by summer dampness) is often used in combination with Atractylodes macrocephala and Coix lacryma; and phlegm-heat cough is often used in combination with Psidium guajava and Piper betelinum zeylanicum.