Helga brushed blood-matted hair from his forehead in a few sure strokes. She couldn't tell with such little light what had happened to him. The cuts and bruises left her baffled and worried. She hooked the edge of the basket and pulled it closer, rifling through to the bottom where a few vials of pain potions rested and withdrew one, popping out the cork.
She held it up to his lips. "You're safe at Hogwarts. Drink this. It'll ease the pain."
She would likely have to carry him the length of the grounds back into the castle, but if she could remove just a small portion of the pain he felt, the journey would be less strenuous all around.