Ashtangasamgraha 30.14

30.14

For the sharp smoke, only through both nostrils, four puffs each, or until lightness of the channels [occurs];

and three or four times in a day and night.

There, inhalation and exhalation are called a puff.

Particularly in the case of poison, one should remove blood using leeches and the like,

for the pacification of pain and to prevent suppuration.