In TCM,hiccups are primarily due to counterflow qi surging up against the diaphragm. In general, this is due to loss of balance of the qi mechanism of the viscera and bowels. In particular, the liver governs coursing and discharge and it balances and keeps uninhibited the qi mechanism.
Further, its channels and vessels traverse the two rib-side regions (the word xie also includes the hypochondrium) and pass through the diaphragm to enter the abdomen. Tai Chong (Liv 3) is the source point of the foot jue yin liver channel. It is a place where the transportation and flow of the source qi can be affected. Needling Tai Chong has the power to course the liver and regulate the qi, level the chong and descend counterflow. This is based on the principle of needling below for a disease located above. Nei Guan (Per 6) is the luo or network vessel point of the hand jue yin pericardium channel. It connects with the hand shao yang triple heater and opens the yin qiao mai. It also unites with the foot yang ming stomach channel. Therefore, needling Nei Guan is capable of opening and descending counterflow qi in several channels. It also balances and harmonizes the qi mechanism of the viscera and bowels. In general, it is able to rectify the qi and descend counterflow, while in particular, it loosens the chest and disinhibits the diaphragm.