misheal

verb2

1. •
   To heal improperly.

   • It's a loss that occurred when his wife's injuries from the accident healed or mishealed in such а manner as to now cause her to be unable to have sex without pain. — 1987
2. •
   (rare) To provide the incorrect treatment to someone one is attempting to heal.

   • Some “famous doctors" referred patients to him that they could not heal or those they had mishealed. — 1980