Far Zhi is bitter, pungent, and warm in nature, so people with dampness and heat should use Far Zhi with caution.
The dried root is used as medicine. It is bitter, pungent and warm in nature, with the effects of tranquilizing the mind and promoting wisdom, communicating with the heart and kidneys (the fire in the heart descends and the water in the kidneys rises, which is mutually restrained), subduing swelling and expelling phlegm, and can be used clinically to treat forgetfulness and palpitations, insomnia and dreaming, trance, sores and swelling, cough and phlegm, breast swelling and pain, and other conditions caused by the lack of communication between the heart and the kidneys (the heart is burning and the kidneys have a deficiency of yin, which is a disorder in the physiological function of the heart and the kidneys).
Yuanzhi is generally used as a decoction, but can also be used externally to dissolve phlegm and relieve cough. Due to its warm nature, people with dampness-heat should be cautious of using it, so as not to further aggravate dampness-heat.
The adverse reactions of Yuan Zhi are not clear, phlegm fire, solid heat, gastric ulcer or gastritis, allergic to it is prohibited, Yuan Zhi needs to be used under the guidance of traditional Chinese medicine, can not be used blindly, so as not to cause damage.