Skills on Sunday - From D&D 3e. Heal: allows you to render first aid, give long-term care, treat wounds, treat poison, or treat disease. http://www.d20srd.org/srd/skills/heal.htm
We talked about rules changing from one edition to another in D&D over the years yesterday. And the Heal skill is a prime example of that. In 3e, Heal was a very crunchy check with lots of sub-categories and different kinds of bonuses and applications for various situations. All that is now rolled into the Medicine skill in 5e. Sometimes I think the simplification of rules can make the game a bit bland, and it can sometimes be useful as a player or DM to go back to the older versions and look at skills and see how they were worded.
As a DM, would you allow some version of the Heal skill to be ported to 5e? What would you say could be added to flesh out the Medicine skill that would not be game-breaking in 5e, at least at your table?