@asspirin Aye, also I would see bandages more as a way to mostly stop bleeding and not actual healing. Bandages really don't heal anything after all, they just help keep wounds clean so that they are able to heal better.
Potions would be nice to have like a toxicity limit on, the more you drink the drunker you get or something? So even though they may heal someone faster they also come with a down side. They need more than just a crafting cost associated with them I believe.
Skills and spells of course can be balanced out in so many different ways, and only work in certain situations or against specific things.