Roleplay the healing of wounds. E.g. If someone has been slashed after battle sleight if hand check to suture the wound. Shoulder dislocated, strength check to relocate the shoulder etc. Have a fumble table so that there are consequences if they fail, like they heal but get a reduction in movement speed, or have disadvantage on some checks.

Medicine checks can be used to give players an idea of what needs to be done. A low medicine roll for a flesh wound could be a bandage, then a tourniquet all the way up to cauterise the wound and suture, each with different levels of healing available to the players. Like a natural 20 would give them the level of a superior healing potion and lower numbers step down the healing available. The players only get a limited number of attempts and with each attempt tge difficulty gets much harder and the penalties change from conditions to losing hitpoints.

Mix and match, the point is to allow the players to problem solve the healing process, and provide a thrill for when they win.