Psyllium is mainly taken by decoction of soup for internal use. Psyllium is cold in nature, sweet in taste, and belongs to the liver, kidney, lung and small intestine meridians. It has the efficacy of clearing away heat, diuretic and drenching (to improve the problem of dribbling in urine and the problem of small amount of urine not being able to be passed), expelling phlegm, cooling the blood, detoxifying, and can be used for the clinical use of feverish drenching (burning and stinging pain is obvious in urine, accompanied by urinary frequency and urgency, and discomfort of pulling in the small intestine) and astringent pain, oedema with little urine, summer-dampness and diarrhea, phlegm-heat and cough, and vomiting and epistaxis and other diseases. When using plantain, attention should be paid to those who have deficiency and slippery essence not solidified is prohibited. The drug is mainly taken by decoction. If you need to use Plantago Ovata, it is recommended to go to regular hospitals for consultation and treatment under the guidance of professional physicians.