Si Ni San (Frigid Extremities Powder, mentioned for qi reversal): Chinese Medicine Cases

Cold Hands and Feet Like Ice, Shivering All Over — Is It Always Yang Deficiency? Doctor Yu Jiayan's Tiao Wei Cheng Qi Tang (Regulating the Stomach and Purging Qi Decoction) for Heat Reversal (Re Jue) from Yangming Fu Excess — True Heat Hidden Behind False Cold