Charak Samhita
मन्त्रागदप्रलेपाद्यैर्भेषजैर्हेतुभिश्च ते । लिङ्गैकदेशैर्निर्दिष्टा विपरीता निजैर्व्रणैः [२] ॥८॥
Exogenous ulcers are different from the endogenous ones in respect of treatment with mantra (incantations), anti-poisonous pastes for external application etc. While endogenous ulcer bears opposite characteristic features in respect of etiology, sign symptoms and treatment.
english translation
mantrAgadapralepAdyairbheSajairhetubhizca te । liGgaikadezairnirdiSTA viparItA nijairvraNaiH [2] ॥8॥
hk transliteration by Sanscript