There is no real world equivalent to the MMO Healer of the game

Class Roles - The Unsung Healer
Of the three standard MMO classes, Healing is the only one that gives me little cause for comment. This is for several reasons. First, unlike the Star Wars Galaxies credits DPS or the Tank, there is no real world equivalent to the MMO Healer.
The Healer is a work of pure fiction, developed solely from the fantasy genre. Games demand that characters on the point of death have the ability to quickly recover as if they'd never been injured. This can only be explained through magical or supernatural means.
The benefit this gives that no one really expects healing to be practical or based on the laws of science. Not even me. Instead, healing is bound by the specific background of the MMO world. This leads to the second benefit.
Because every game world has its own cosmology and cosmogony, healing can very heavily from game to game. Unlike the DPS and Tank which are becoming more and more similar, varieties of Healers abound.
If you're reading this as you make a nuker, swg credits, buy the OC slow nuke and a pair of basic bracers, and level the heck out of that nuke, and only that nuke.
Trust me; you'll be amazed how powerful it gets so quickly. That should hold you until you get to the next good nuke, and till I update.