The Compendium of Caraka 6.12.82

6.12.82

saṃśodhite sveditamaśmakāṣṭhaiḥ sāṅguṣṭhadaṇḍairvilayedapakvam/
vipāṭya coddhṛtya bhiṣak sakośaṃ śastreṇa dagdhvā vraṇavaccikitset//

Once [the patient] is purified, [the physician] should dissolve the unsuppurated [granthi] after sweating it with stones, wood, and poles along with the thumbs; / and after cutting open and extracting it along with its capsule with a knife, and cauterizing it, the physician should treat it like a wound.