In Harry Potter and the Deathly Hallows Part 1 (2010), Ron got injured after Apparating, so Hermione treated him with a spell.
Yet afterwards he is still shown wearing a bandage: why so?
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8Technically, she cured him with Essence of Dittany which is not a spell. Carry on.– JohnPCommented Dec 15, 2021 at 16:03
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22Looks like a sling, not a bandage. But the question remains…– Jon CusterCommented Dec 15, 2021 at 16:15
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14@JonCuster is correct. That is a simple sling, not a bandage. One may assume the wound is closed but orthopedic damage remains. Is there is direct evidence for this from movie or book?– Dosco JonesCommented Dec 15, 2021 at 16:29
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1@DoscoJones the sling seems like evidence enough :p– GammaGamesCommented Dec 16, 2021 at 22:33
1 Answer
The wound was closed using Essence of Dittany but it's not a complete solution...so there is still damage to the arm.
Harry wrenched the stopper off the little bottle, Hermione took it and poured three drops of the potion onto the bleeding wound. Greenish smoke billowed upward and when it had cleared, Harry saw that the bleeding had stopped. The wound now looked several days old; new skin stretched over what had just been open flesh.
“It’s all I feel safe doing,” said Hermione shakily. “There are spells that would put him completely right, but I daren’t try in case I do them wrong and cause more damage. . . . He’s lost so much blood already. . . .”
Harry Potter and the Deathly Hallows - J.K. Rowling
So although the immediate problem has been solved his arm is still not completely healed so a sling (not a bandage) is required
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2Worth noting that there is an existing example of a spell that could put him completely right, but its demonstration of it proved that you could, in fact, get them wrong and cause more damage. Commented Dec 17, 2021 at 6:16