The Compendium of Caraka 1.15.12

1.15.12

athainamanuśiṣyāt vivṛtoṣṭhatālukaṇṭho nātimahatā vyāyāmena vegānudīrṇānudīrayan kiñcidavanamya grīvāmūrdhvaśarīramupavegamapravṛttān pravartayan suparilikhitanakhābhyāmaṅgulibhyāmutpalakumudasaugandhikanālairvā kaṇṭhamabhispṛśan sukhaṃ pravartayasveti sa tathāvidhaṃ kuryāt tato 'asya vegān pratigrahagatānavekṣetāvahitaḥ vegaviśeṣadarśanāddhi kuśalo yogāyogātiyogaviśeṣānupalabheta vegaviśeṣānupalabheta vegaviśeṣadarśī punaḥ kṛtyaṃ yathārhamavabudhyeta lakṣaṇena tasmādvegānavekṣetāvahitaḥ //

Then one should instruct him: “Opening your lips, palate, and throat, without excessive exertion, bringing forth the urges when they have arisen, bending slightly the neck and upper body, inducing the urges when they have not commenced, touching the throat with two fingers having well-trimmed nails or with stalks of the blue lotus, white water lily, or fragrant water lily, bring [the emesis] forth with ease.” He should act accordingly. Then, attentively, one should observe his urges collected in the spittoon; for by observing the nature of the urges, a skilled [physician] recognizes proper action, deficient action, and excessive action. Observing the nature of the urges, he furthermore understands what should be done as appropriate according to the signs; therefore, he should attentively observe the urges.