The Compendium of Caraka 6.28.90

6.28.90

&pācanairdīpanairyuktairamlairvā pācayenmalān/
gudapakvāśayasthe tu karmodāvartanuddhitam//

or digest the wastes with digestive, appetising, or sour substances. / When it is situated in the rectum and colon, the procedure that cures upward movement of wind is beneficial;