HistoryIt is unknown when the jinx was invented and who it was invented by. Harry Potter unintentionally used this jinx on Severus Snape during an Occlumency lesson. It resulted in a welt on Snape's wrist. Hermione Granger used it on Harry Potter as a means of disguising his face when they were caught by Snatchers after inadvertently triggering the Taboo on Voldemort's name in 1998.
The affected flesh feels tight, swollen and puffy as though the victim has suffered an allergic reaction, and if used on the face the eyes are reduced to narrow slits. It also produces welts on the skin if used on other parts of the body.
- Unnamed vandal
- Harry Potter and the Order of the Phoenix (First appearance)
- Harry Potter and the Deathly Hallows
- Harry Potter and the Deathly Hallows: Part 1
- Wonderbook: Book of Spells
- Harry Potter: The Character Vault
- Harry Potter: Hogwarts Mystery (mentioned only)