Cure for Boils

The Boil-Cure Potion is a potion which cures boils. Little else is known about this, except that it is an elementary potion taught to first-years.

Ingredients needed:
 * 1) Dried nettles
 * 2) Crushed snake fangs
 * 3) Stewed horned slugs
 * 4) Porcupine quills