Hawthorn and cassia seeds in water have a certain effect of eliminating food and improving eyesight, but the effect is very limited. Drugs are recommended to be used under the guidance of a professional Chinese medicine practitioner, not to make water to drink. Hawthorn has the efficacy of strengthening stomach and eliminating food, promoting qi and dispersing blood stasis, resolving turbidity and lowering fat (cleansing the body of impurities and reducing excess fat), and is mainly used for treating stagnation of meat and food, distension of stomach and epigastric region, blood stasis and menstrual closure, and tingling in heart and abdomen. It should be used with caution for patients with weak spleen and stomach, as well as those with excessive gastric acid secretion. Cassia seeds have the effect of clearing the liver and brightening the eyes (clearing the liver fire to promote the recovery of eyesight), moistening the intestines and relaxing the bowels, and are mainly used for the treatment of eye redness and astringent pain, shyness and tearfulness (the eyes are afraid of the light, and often tearful), headache and dizziness, constipation, etc.. It is not suitable for people with Qi deficiency and unformed stool. Since hawthorn has the effect of eliminating food and resolving stagnation (digesting stagnant food) and has a certain degree of acidity, try not to drink it in water on an empty stomach to avoid discomfort. The medicine is recommended to be used under the guidance of a professional Chinese medicine practitioner and should not be taken by oneself.