SpellsCharm
Episkey
A healing spell. Tonks uses it to mend Harry's broken nose after finding him on the Hogwarts Express. Harry later uses it to repair Demelza Robins's injured mouth during Quidditch practice.
In the books
Harry Potter and the Half-Blood PrinceChapter: 8
Tonks uses the spell to mend Harry’s nose after Draco breaks it on the train.