Cassia seed and Xia Ku Cao have the effect of clearing liver and improving eyesight, moistening intestines and laxatives, dispersing knots and eliminating swelling. 1. Cassia seeds can clear heat and improve eyesight (remove heat in the body and promote vision recovery), moisten the intestines and laxative, used for eye redness and swelling caused by wind-heat, headache and dizziness caused by hyperactivity of liver yang and constipation caused by gastrointestinal heat. Cassia seeds are not suitable for people with loose stools (thin and unformed feces) due to deficiency of qi. 2. Xia Gu Cao can clear liver fire (remove liver fire), improve eyesight, dissipate nodules and reduce swelling, and is used for eyesight redness and swelling caused by liver fire, headache and dizziness, nodules and lumps. People with weak spleen and stomach should be cautious of using Xia Gu Cao. Combining cassia seed and Xia Ku Cao has the effect of clearing liver fire, improving eyesight, dispersing nodules and swelling, moistening the intestines and relaxing the bowels. The adverse effects of cassia seed and Xia Gu Cao are not clear, and the medication should be taken under the guidance of a traditional Chinese medicine practitioner, and individuals should not take the medication on their own.