Psyllium husks are used as a laxative and for softening stools in people with hemorrhoids, anal fissures, and after anal surgery. It is also used for diarrhea, irritable bowel syndrome (IBS), ulcerative colitis, and dysentery. Other uses include high cholesterol, high blood pressure, diabetes, cancer, weight control, and serious renal disease.Some people apply blond psyllium to the skin as a poultice for boils.