[quote=@BurningCold]
[@MiddleEarthRoze] I figured that the first people to do anything taught themselves, which is why I have alchemy and suturing where they are. The idea was that alchemy and suturing together were his "first aid" skills, and I also reckoned that learning how to sew wounds would be easier than creating potions and salves to aid a healing process. If this explanation isn't satisfactory, I could bump then down a level if that would resolve things. 
[/quote]

Nah, just mention in his backstory that someone taught him alchemy and restoration. Considering the amount of injuries and magic users present in the arena, it wouldn't be hard to pick up the basics from someone willing to teach.