The Compendium of Caraka 6.12.95

6.12.95

virecanābhyaṅganiruhalepāḥ pakveṣu caiva vraṇavaccikitsā/
&syānmūtrasekaḥ kaphajaṃ vipaṭya viśodhya sīvyedvraṇavacca pakvam//

Purgation, anointing, non-unctuous enemas, and pastes [are indicated], and in the suppurated ones, treatment like a wound; / there should be irrigation with urine; after cutting open that born of kapha and purifying it, one should suture it, and when suppurated, [treat it] like a wound.