Used to relieve deficiency of yin with liver fire, causing heat symptoms in the upper burner including ear-ringing, headache, high blood pressure, eye pressure, insomnia, thirst, and eye irritation. Source: Xiao Er Yao Zheng Zhi Jue, (Pediatric Pharmaceutical), Song Dynasty, 960-1279. Function: Nourish yin; hide the liver yang Application: Use to relieve hearing disorders such as tinnitus, and partial but not complete deafness (sensor-neural) which is due to def. kidney yin with relative excess yang. In addition, the patient may have related symptoms such as dizziness or vertigo. Use to relievepoor vision or blurred vision due to def. kidney yin and def. liver yin.