Epispastic

a. [Gr. ἐπισπαστικός, from ἐπισπᾶν, to draw to or after, to attract, from ἐπί and σπᾶν, to draw; Fr. épispastique.] (Med.) Attracting the humors to the skin; exciting action in the skin; blistering.

n. (Med.) An external application to the skin, which produces a puriform or serous discharge by exciting inflammation; a vesicatory.