Final fantasy 13 - how do i get rid of the ailment with the red numbers above ur head that countdown and kill?

i've tried everything, i'm in an eidolon battle, and at the beginning they cast that ailment and i've tried everything to get rid of it, antidote, holy water, potion whatever. i don't have any other eidolons to summon to get rid of it that way, and my medic in my party doesn't seem to cast esuna to get rid of it. help!