If player crafting is introduced I think it'd be nice for characters to be able to create medicine bags, anti toxens and salutory potions. Something like "Craft Medicine" and a choice of medicines that you could cobble together from things found in the Underdark. Afterall, Adelia Tyrell said that the merchants create the medicines after the ingredients are gathered together by citizens of Sanctuary.
Also, as those skilled in healing the body also tend to be knowledgable in what harms it, how about including poisons under "Craft Medicine" as well to help round out the skill and make it an attractive choice to place skill points into? Perhaps depending on the roll or upon player choice they can change the effectiveness of said medicines as well? med bag +1/2/3, spider venom mild/average/strong/deadly etc?
Probably alot of interesting things we can do with this, and other crafting choices, and another unique feature of EfU.