The thought of a spell had honestly not occurred to him. The routine of these past few days, leaning on Percy to the point of almost being carried as they slowly made it up or down the stairs, had become something to expect. As had the no magic around him rule.
It was a relief to suddenly be reminded - not in words but in a quite hands on way - that that rule no longer applied. Magic was just fine, and with Magic came ease from the pain he felt. Not to mention a preservation of his energy.
He was smiling as Percy laid him on the bed, reaching out for him, wanting to pull him down next to him. 'Agreed,' he said, looking at him, wanting so much to be endlessly closer than he was now.