The Compendium of Caraka 6.7.24

6.7.24

&raktaṃ sakaṇḍu sasphoṭaṃ sarugdalati cāpi yat/
taccarmadalamākhyātaṃ saṃsparśāsahamucyate//
&`raktaṃ saśūlaṃ kaṇḍūmat sasphoṭaṃ' iti pā-.
pāmā śvetāruṇaśyāvāḥ kaṇḍūlāḥ piḍakā bhṛśam/
sphoṭāḥ śvetāruṇābhāso visphoṭāḥ syustanutvacaḥ//

That which is red, itchy, with blisters, painful, and cracks, / that is declared carmadala, and is called intolerable to the touch. / Pāmā consists of white, reddish, or dusky, exceedingly itchy pimples; / visphoṭakas are blisters of thin skin, whitish-red in appearance.