Astanga Hrudaya
(विषग्निशस्त्राशनिमृत्युतुल्यः क्षारो भवेदल्पमतिप्रयुक्तः। स धीमता सम्यगनुप्रयुक्तो रोगान्निहन्यादिचिरेण घोरान्)॥१॥ अग्निः क्षारादपि श्रेष्ठस्तद्दग्धानामसम्भवात्। भेषजक्षारशस्त्रैश्च न सिद्धानां प्रसाधनात्॥४०॥
Effects of wrongly administered kshara: Alkali administered in less or excessive proportions (by the physician of poor intellect) is like death caused by poison, fire, sharp weapons or thunderbolt, whereas when done properly by an intelligent physician, it cures even the dreaded diseases quickly. (1) Thermal/fire cauterization, Branding – Agnikarma: Fire cauterization is better than even alkali cauterization. The diseases that are treated by fire cauterization do not recur and it can be used even in diseases which have not been successfully treated by herbs, alkali or surgical methods.
english translation
(viSagnizastrAzanimRtyutulyaH kSAro bhavedalpamatiprayuktaH। sa dhImatA samyaganuprayukto rogAnnihanyAdicireNa ghorAn)॥1॥ agniH kSArAdapi zreSThastaddagdhAnAmasambhavAt। bheSajakSArazastraizca na siddhAnAM prasAdhanAt॥40॥
hk transliteration by Sanscript