Ashtangasamgraha 40.2

40.2

Fire is superior even to alkali, because conditions not cured by drugs, instruments, and alkali are cured by its burning, and because of their non-recurrence.
There, thermal cautery is applied to the skin, flesh, veins, ligaments, joints, and bones.
There, in the case of mole, dark freckle, cutaneous tag, painful, stiff, or flaccid limbs, ophthalmia, adhimantha, and afflictions with pain in the head, brow, temples, and forehead, cautery of the skin is performed using a sun-crystal, pippalī, goat dung, cow's tooth, an arrow, or a probe, appropriately; but in ophthalmia and similar diseases, in the regions of the brow, temple, and forehead.
In benign swelling, tumor, hemorrhoids, fistula-in-ano, cervical lymphadenitis, elephantiasis, inguinal hernia, foul ulcer, sinus, fistula, and deep indolent abscess, cautery of the flesh is performed using a jambu-lip instrument, needle, probe, ghee, jaggery, honey, beeswax, oil, muscle fat, gold, copper, iron, silver, or bell metal.
In tears of veins, ligaments, joints, and bones, excessive hemorrhage, dental sinus, sticky eyelid, ingrown eyelashes, cataract, and improper puncture, cautery of the veins and other parts is performed using a jambu-lip instrument, needle, probe, honey, beeswax, jaggery, and unctuous substances.
Because the gods and demons were dejected merely upon seeing it, it obtained the designation 'viṣa' (poison).