A free mod for Mount & Blade II: Bannerlord, by Falskian.
Combat Bandage is a mod that allows you to use a hotkey to apply a bandage to your body during combat. This is useful if you have been injured in a battle and need to heal yourself.
The way it works is that you have a limited number of bandages in each battle. If you run out, you will have to wait for the next battle to use more. The bandages don’t take up a weapon slot, so you can still go into combat with all your equipment.
There is a configurable healing amount and healing time. You can also set it to be applied while you are moving.
The main purpose of this mod is to allow you to heal yourself during combat. However, it is fully configurable, so you can adjust it to fit your preferences.