(Sitting time: all day from Monday to Friday) A: Gastrodia elata is widely used in medicine, which has the effects of calming the liver, calming the wind, expelling wind and calming convulsions. Used for dizziness, numbness of limbs, convulsion, epilepsy, hypertension and otogenic vertigo. However, Gastrodia elata is different from Panax notoginseng. Although gastrodia elata is raw and cooked, gastrodia elata on the market is made by steaming fresh gastrodia elata and slicing it in the sun. Because gastrodia elata is generally not eaten raw, fresh gastrodia elata is often used as "fresh gastrodia elata stewed chicken", and gastrodia elata can also be made into pills, tablets and granules. It is generally not recommended to grind gastrodia elata into powder to treat headache. At present, Tianma headache tablets and Tianma Qufeng tonic are common in the market.