Aang : What am I supposed to do with frozen frogs?
Herbalist : Why, suck on them, of course.
Aang : Suck on them?
Herbalist : The frog skin excretes a substance that'll cure your friends, but make sure you get plenty. Once those little critters thaw out, they're useless.
Aang : You're insane, aren't you?
Herbalist : [singsong voice] That's right.