this is yang- or hot-type collapse (yáng jué), which is commonly due to heat entering the interior where it constrains the yang qi. this inhibits the spreading of yang qi to the extremities, causing cold fingers and toes (in contrast to depleted yang, where the entire limb is cold), and a warm body. the tongue signs reflect the presence of heat. the wiry pulse and the sensation of irritabilty and fullness in the chest and abdomen reflect interior constraint.

nowadays this formula is used to treat rebellious liver qi attacking the stomach and spleen, characterized by hypochondriac pain and distention, sometimes with epigastric pain and fullness, a bitter taste in the mouth, belching, reduced appetite, and a wiry, forceful pulse.

(bensky & barolet)