Astanga Hrudaya
घ्राणेन चोर्ध्वजत्रूत्थान् पक्वाधानाद्गुदेन च। उत्क्लिष्टानध ऊर्ध्वं वा न चामान् वहतः स्वयम्॥३१॥
Drugs administered through the nose bring out the Doshas from the parts above the shoulders and Drugs administered through the rectum bring out the Doshas from the Pakvasaya – large intestine. Saama Doshas which are greatly increased and going out of the body on their own accord, either in the upward or downward routes-
english translation