Plantain is mainly used to treat conditions such as accumulation of heat in the bladder, irregular urination, and diarrhea caused by summer dampness. Plantain belongs to the traditional Chinese medicine, which has the effect of removing heat, making urination smooth, removing heat from the blood, and dissipating poisonous evils. Psyllium is used for treating dampness-heat stagnation and accumulation in the bladder, unobstructed urination, bleeding blood from the teeth, blood in the urine, liver-heat leading to red eyes and swollen throat, sore throat, dribbling of urine like rice slop, and surgical infectious diseases, etc. It is often combined with talcum powder. Plantain is often combined with talc, dong quai zi, and mu tong to treat dampness and heat in the bladder. Plantain is often used together with dandelion and inulin to treat jaundice hepatitis. Contraindications for the use of Plantago Ovata are that it is contraindicated for those who do not have solid essence. Adverse reactions and precautions are not clear. If you need to use the drug is recommended to be used under the guidance of a traditional Chinese medicine practitioner, unauthorized use of drugs may cause adverse consequences.