"Any merthur fics where Merlin gets injured and Arthur has to take care of him?"
Be sure to browse the archive and the hurtcomfort tag for more.
A Beaten Edge
Things aren’t the same after the Questing Beast.
For the Weary
When Arthur becomes King, Merlin overworks himself.
When Gaius retires, a new physician takes over, one that quickly kicks Merlin out of his room and takes it for himself, Arthur finds Merlin sleeping in the stables..and it’s winter.
Merlin and Arthur are kidnapped by bandits seeking ransom. When Merlin is assaulted by a guard, he’s forced to use his magic in front of Arthur.