Ashtangasamgraha 27.8

27.8

atha virecanasādhyā jīrṇajvarordhvaraktapittagulmavidradhiplīhārśobhagandarodarakṛmiṇakoṣṭhamūtrāghātaretoyonidoṣavātaśoṇitahalīmakavyaṅgatimirakācābhiṣyandākṣipākakṣārāgnidagdhakuṣṭavraṇaśiraḥpakvāśayaśūlodāvartavibandhacchardivisphoṭādayo vāmyoktāśca viṣūcikādayo doṣabhedīyoktāśca pittavyādhayaḥ |

viśeṣeṇaite hi paraṃ virecanena nāśamupayāntyagnyapanayanenāgnigṛhatāpavat ||

śirastāpo 'yam #

Now, those treatable by purgation are: chronic fever, upward bleeding disorder, abdominal swelling, abscess, splenic enlargement, hemorrhoids, fistula-in-ano, abdominal disease, a parasite-infested abdomen, urinary retention, disorders of semen and the female genital tract, vātarakta, advanced jaundice, dark facial patches, cataract, partial blindness, eye inflammation, suppuration of the eye, burns from alkali or fire, obstinate skin disease, wounds, pain in the head and the colon, upward movement of vāta, constipation, vomiting, eruptions, and the like, those illnesses mentioned as suitable for emesis such as cholera-like disease, and the pitta disorders mentioned in the chapter on the classification of doṣas.

Especially these reach complete destruction by purgation, just as the heat of a house on fire ceases upon the removal of the fire.

/ This burning sensation of the head #