Cassia is a traditional Chinese medicine, internal use of liver clearing (clear liver fire to promote vision recovery), laxative effect, can be used for red eyes and astringent pain, photophobia and tears, etc., but the pillow cassia only by the skin for short-term contact, almost no such efficacy effect. It is recommended to follow the doctor’s instructions for the correct use of cassia seeds. Cassia seeds bitter cold, can enter the liver fire to brighten the eyes; its bitter cold nature is not good, due to both sweet and moist and no bitter dry Yin injury disadvantages, so for all evidence of eye disease commonly used drugs. Whether liver fire eye disease, or wind-heat eye disease and liver deficiency eye disease, can be used. Treatment of liver fire attack, eye redness, swelling and pain, shyness and tears (eyes afraid of light, often tears) or eye cataracts, often with psyllium, celosia and other drugs. Cassia seeds can slow down the laxative, mostly used for internal heat and intestinal dryness, constipation and constipation of the evidence, often with the fire Ma Ren, Psoralea, and other drugs with the lower part of the lubrication. Diarrhea and low blood pressure should be used with caution. If you need to take cassia seeds, it is recommended to do so under the guidance of a doctor.