Cassia seed tea can be decocted with water to take or take with boiled water, decoction is more conducive to bubble water cassia seeds of the active ingredient precipitation, so may give full play to the efficacy of the drug, but there is no correct way to drink said that the specific method of medication need to comply with the doctor’s instructions. Cassia seeds taste sweet, bitter, salty, slightly cold. Attributed to the liver, large intestine meridian. It has the efficacy of clearing heat and brightening the eyes (removing heat from the body and promoting the recovery of eyesight), moistening the intestines and laxatives. Used for eye redness and astringent pain, shyness and tears (eyes afraid of light, often tears), headache and dizziness, dark eyes, constipation. Cassia seeds are cold in nature, easy to hurt yang qi, so it is not suitable for patients with cold spleen and stomach (spleen and stomach weakness and cold), it is recommended that patients do not take the drug on their own, so as not to delay or aggravate the condition.