Headache Ease is a wonderful herbal formula which can aid in the relief of both acute and chronic headaches. The main herb for pain in this formula is Corydalis Rhizome, which is an effective, safe, and non-addictive herb. Corydalis promotes blood circulation and invigorates Qi making it an important herb for any kind of pain. The combined alkaloid constituents are about 40% as effective as morphine. This formula also clears wind, promotes the movement of Qi and blood stagnation.