Healing followers w/no portraits

[cutterjohn]

Is there a way to heal the extra followers with no portraits?

I tried to drag a potion onto one, but it just dropped on the ground.

Resting at an inn didn't do anything for them either.

I'm on the first map and am specifically relying to the Outskirter's(? or whatever he's called) sons. (One of the melee guys always gets beat up, but they do seem to regen hp slowly if just walking around... but it's strange that they get nothing when the main party rests at an inn... or I should say the only inn on that map...)

(It probably doesn't matter if they croak, but it irritates me in games to take unnecessary casualties just because of a pointless gameplay mechanic...)