Ashtangasamgraha 2.134

2.134

kuryādyathāsvamuktaṃ ca raktamokṣādisādhanam |

grahotthe bhūtavidyoktaṃ maṇimantrādisādhanam |

auṣadhīgandhaje pittaśamanaṃ viṣajidriṣe ||

nābhiṃ pāke tu tailena taccūrṇeścāvacūrṇayet ||

And one should perform bloodletting and other measures as stated for each; / in that arising from spirit possession, measures described in the lore of spirits, such as jewels and mantras [are used]; / in that arising from the scent of herbs, pacification of pitta; in [that caused by] poison, measures countering poison; / but in ulceration of the navel, [treat it] with oil and dust it with those powders.