Ashtangasamgraha 2.22

2.22

A physician should be skilled, have received the meaning of the scriptures from an authority, have witnessed practice, and be pure; / medicine should have many formulations, many virtues, be endowed [with potency], and suitable.
During that intercourse, he emits only wind.
Coldness, rigidity, darkness [of vision], dizziness, and drowsiness are the signs of fever produced by śleṣman and vāta.
Fats prepared with raisin and balā destroy fever.
And in the early winter, one should drink the powder of svarṇakṣīrī with hot water.
Veins, however, do not regenerate; by this, those lost through disease are also mostly explained.