The efficacy of cassia seeds for clearing heat and eyesight (to get rid of the body heat, to promote the recovery of vision), laxative, with the treatment of eye redness, swelling and pain and other conditions, qi deficiency of loose stools (feces sparse and unshaped) is prohibited. Cassia seeds taste sweet, bitter, salty, cold, can be used for the treatment of red eyes and astringent pain, shyness and tears (eyes afraid of light, often tears), headache and dizziness, dark eyes, constipation and other diseases. It is often used with chrysanthemum when treating eye redness and swelling pain due to wind-heat attack and shyness and tearfulness; it is often used with stone vitex and chrysanthemum when treating eye redness and swelling pain due to liver fire attack; it is also used with wolfberries, radix Rehmanniae and Cornus officinalis in the treatment of yin deficiency of liver and kidney (deficiency of yin in the liver and kidneys), dimming of vision and darkness of the eyes. Adverse effects of taking cassia seeds are not clear, if you need to use the drug, it is recommended under the guidance of a doctor.