Cassia seeds in water may not be able to fully analyze the active ingredients, and only cassia seeds, so the efficacy is limited, coupled with the efficacy of each person with the drug and inconsistent, so it can not be generalized. Cassia seeds for the legume obtuse leaf cassia or cassia (small cassia) dry mature seeds. Taste sweet, bitter, salty, sex slightly cold. Attributed to the liver, large intestine meridian. It can clear heat and brighten the eyes, moisten the intestines and laxative. Used for eye redness and astringent pain, shyness and tears (eyes afraid of light, often tears), headache and dizziness, dark eyes, constipation. Cassia seed with stone cassia can both calm the liver and clear fire, as well as nourish the liver and submerge Yang. It can be used for the symptoms of red and swollen eyes, tearful eyes, headache and headache caused by the inflammation of liver fire, and the symptoms of dizziness, dizziness, dim vision and dry eyes caused by the deficiency of liver yin and hyperactivity of liver yang (the symptoms of dizziness, dizziness and headache caused by the hyperactivity of liver yang). Patients are advised to use the medicine under the guidance of a doctor.