Compendium of Materia Medica records: "It is beneficial to fatigue, moisten skin and nourish viscera and blood vessels." The emaciation and skin dryness caused by the dysfunction of viscera are symptoms of body fluid injury and blood deficiency. Yin deficiency injury will cause fatigue and fever, which will consume more body fluid, so the hair will be broken and the skin will be dry.
Butter and honey can moisten skin and increase muscle, and are also suitable for thirst and fever due to yin deficiency.