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Cheng Wuji attributed the condition to deficiency-cold and proposed sweating therapy; however, such patients would inevitably experience steaming heat accompanied by tremors due to deficiency. If tremors occur after purgation followed by sweating, it indicates that both the exterior and interior are deficient. If chills and tremors occur after hemorrhage followed by sweating, it is also due to the simultaneous deficiency of Qi and Blood. In cases where patients tremble violently as if wanting to fall to the ground, or those who exhibit shaking and swaying, these are caused by excessive sweating leading to the loss of Yang Qi. The meridians become deficient and lose their ability to control the body, resulting in tremors; this is distinct from mere shivering due to cold.

The Classic states: "After vomiting or purgation, if there is fullness and rebellious Qi rising to the chest, dizziness upon standing, and subsequent sweating disturbs the meridians causing body tremors, Poria, Cinnamon Twig, Atractylodes Macrocephala and Licorice Decoction (Fuling Guizhi Baizhu Gancao Tang) should be used."

In Taiyang disease, if sweating fails to resolve the condition, and the patient still has fever, palpitations, dizziness, muscle twitching, and trembles violently as if wanting to fall to the ground, True Warrior Decoction (Zhenwu Tang) should be used.

Both formulas are agents that warm the meridians, benefit the blood, and assist Qi.

Zhang Yuansu (Haozang) stated: Only individuals fond of alcohol and sexual activity suffer from the dissipation of True Yuan and simultaneous deficiency of Qi and Blood. Whether trembling occurs due to labor or not, or due to internal Yin excess with Yang collapse, all belong to Yin syndromes.

If contracted through sexual excess, symptoms described in the "Yin-Yang Exchange" section appear: heavy head unwilling to lift, blurred vision, hot Qi rushing to the chest, shortness of breath, hoarseness or inability to speak, pain in the lower abdomen radiating to the genitalia, or a sensation of contraction inward, along with cold and painful calves. In such Yin syndromes, the limbs often tremble. Initially, even if the pulse feels forceful upon lifting and pressing, it must not be treated as a Yang syndrome. Administering cold-natured herbs for Yin syndromes will inevitably transform the condition into cold. Conversely, using excessively hot herbs to treat extreme Yin is also inadvisable, as excessive heat may generate other pathologies. Instead, one should regulate with herbs that tonify Qi and nourish Blood. As True Yuan gradually regenerates, recovery is possible. However, if the pulse becomes faint, the complexion and glabella turn black, the lips fail to close tightly, and the nails turn slightly cyanotic, then hot-natured attacking herbs should be employed. If the patient has undergone sweating or purgation, hot herbs should not be taken piping hot; they should be allowed to cool to a lukewarm temperature so that the Yin pathogen does not reject the medication. This illustrates the classic principle of "using heat in a cold manner" (Re Yin Han Yong).

This discussion is considered quite reasonable and elucidates points left unexplained by ancient masters.