The healing of bodies comes easier to you with this Perk. Each level will add 2-5 more hit points healed when using the First Aid or Doctor skills.”— Fallout description
Increases the amount healed by using First Aid or Doctor by a varying amount of hit points. Functionally useless, as healing using skills is inferior to just using a Stimpak or resting, aside from some minor experience gains: 25 XP per First Aid use, 50 XP per Doctor. To put things in perspective, it would take 40 uses of First Aid to gain enough XP to reach level 2 and 20 for Doctor. Unfortunately, the player can only employ each skill a limited number of time per day.