Cassia seed is a traditional Chinese medicine, and it is a mature seed of cassia obtusifolia in panicum miliaceum, Leguminosae. Sweet, bitter, slightly cold, entering the liver meridian. It has the effects of clearing away liver heat, improving eyesight, lowering blood pressure and lowering serum cholesterol.

3-4kg of raw cassia seed is used as a pillow for external use, and it is packed in a cloth bag to make a pillow. Cassia seed is slightly cold, slightly fragrant with grass. Sleeping with a pillow smells like sleeping in the green grass. Its seeds are hard, and it can also massage the acupoints on the head and neck, so it has auxiliary effects on headache, dizziness, insomnia, cerebral arteriosclerosis and cervical spondylosis caused by hyperactivity of liver yang.

it's no harm to drink for people who are angry.