Press E to Heal Followers Mod
MODHeal downed companions by simply activating them (provided you have a healing potion with you) and they will react with voiced lines.
Secret tip: There's also an addon for Administer Potions that adds the potion functionality as a dialogue option with followers, instead of having an ability. (Available here: again, do not install this together with the DAK patch for Administer Potions).
The DAK patch for Administer Potions is incompatible with "Press E to Heal", as the DAK patch already allows you to open the "Administer Potion" menu at any time with your followers, including when they're down.
