The Compendium of Caraka 6.14.40

6.14.40

citrakakṣārabilvānāṃ tailenābhyajya buddhimān/
yavamāṣakulatthānāṃ pulākānāṃ ca poṭṭalaiḥ//

The wise physician, having anointed [them] with oil of citraka, alkali, and bilva, / [should foment them] with boluses of barley, black gram, horse gram, and empty grain husks;