Yu Ping Feng San is indicated for patterns of spontaneous sweating due to exterior deficiency. Sweating, aversion to wind, a pale complexion, a pale tongue with a thin and white coating, and a floating, deficient pulse mark the clinical manifestations. It is also used for deficient constitution and deficient Wei Qi that is vulnerable to external wind pathogens. It is inappropriate for sweating due to external contraction or night sweat due to yin deficiency.

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