The Compendium of Bheḷa 6.20.43

6.20.43

bhedanaṃ tāsu kartavyaṃ tato vaṃśaśalākayā || |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. || ekaviṃśo ' dhyāyaḥ || |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. |.. etadālepanaṃ kāryaṃ śaṅkhakasya vināśanam | etānyeva tu sarvāṇi kaṣāyam upadhārayet ||

Then, a piercing should be made in them with a bamboo splint. […] / Chapter Twenty-One. […] / This paste should be applied; it destroys śaṅkhaka. / And one should consider a decoction made of all these same [herbs];