Pimple Jinx

Furnunculus (fur-NUN-kyoo-lus) is a spell that causes a person to break out in boils when it comes in contact with their skin. This spells effect can be cleared by Boil Cure Potion.

=Uses=
 * Harry Potter tried to use this spell on Draco Malfoy. but it was deflected and hit Gregory Goyle in the face.
 * Fred and George Weasley probably used this spell on themselves when they tried to cheer up Ginny Weasley by covering themselves in boils and jumping out at her.
 * An Obliviatornamed Arnold Peasegood was probably hit by this spell while attempting to break up a Goblin Riot in Chipping, Clodbury.

"furuncle" Eng. Fancy name for Boil, and derives from the Latin word furunculus which means petty thief.