"Hermione, check for anything lodged in the cuts. Remove whatever you can, and mark what you can’t get to easily. I think the curse was embedded in the door somehow. The intent was most likely to crucio unwanted guests when they touched the entryway. If we remove whatever cursed pieces are touching him, hopefully, the curse will break. If we heal him, we'll never find all the pieces. When Potter returns with the materials, we can cast specified removals. That should help to limit the internal damage."