Acupuncture: There is a point on your hand known as The Great Eliminator. Hold your hand out in front of your body with the thumb at the bottom. Open and close the space between the thumb and hand so that the thumb acts like a tiger's lower jaw. The acupoint would be located deep within the "tiger's" mouth. Press your other thumb into this crease and massage the mound of flesh there against the bone of the hand. You should feel the muscle roll around under your thumb. Massaging this bump is great for eliminating symptoms of hangovers, such as headaches.
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From @bcuda69