To be fair, the enemy cavalry had no fucking way of getting to the other end of that ravine before them in any sane and rational world. (Yes, they may be faster on unladen horses, but not that much faster considering they'd have to detour pretty far out). So enemy reinforcements boxing them in would logically have been impossible (especially with their forces in the forest ready to pincer any such force).
hold up, the wound from that dagger more so pulling the dagger out, hes gonna bleed out. If my knowledge of anatomy and biology is correct hes fucked even with that "band aid" around his waist.
There isnt any healing magic nor healing potions.