Exuberant yáng repelling yīn

A manifestation of extreme heat resembling cold arising when, in a disease that is fundamentally one of heat, the evil lies deep in the interior, blocks yáng qì, and prevents it from reaching the exterior, causing false cold signs such as reversal cold of the limbs, a sunken hidden pulse, and inability to take cold medicines. The patient will feel vexation and heat in the heart region, the abdomen feels scorching hot to the touch, reflecting the fundamental nature of the disease. However, the rest of the body is cold, and the patient does not wish to be covered. The exuberant heat (exuberant yáng) thus holds the yīn cold in the exterior at bay.