(なおす) (VT) to heal a person or animal.   $$$
える(いえる) (VI) something heals.
やす(いやす) To heal (emphasis on making the pain go away) ーusually used metaphorically – these show trials will quench the public’s thirst for blood! Patch the romantic wounds.
(ちゆ) Healing in general:(the healing process / an unhealed wound / taking too long to heal)
(ちりょう) Cure, as in “the cure for cancer.”
(いりょう) Medical treatment- the kind one gets in a hospital (x-rays, MRI, surgery, etc.)
(てあて) Medical treatment – the kind you can do at home (band-aids, gauze wrap, simple stitches, etc.)