|"Is this all real? Or has this been happening inside my head?"
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Ague is a term that refers to an illness (such as malaria) characterised by alternating fits of fever, chills, and sweating.
Eating whole ashwinder eggs was a known magical cure for ague. There was also a potion that was used for curing ague. However, if it was brewed incorrectly, it could be fatal. Quintia McQuoid died in the early 15th century after consuming an improperly-brewed batch of this potion.
In the 12th century, Muggles in the village of Stinchcombe, Gloucestershire regularly went to their neighbour Linfred (who, unbeknownst to them, was a wizard) seeking remedies for the ailments that afflicted them. He readily brewed potions for them, including cures for pox and ague.
- Fantastic Beasts and Where to Find Them (Mentioned only)
- Pottermore (Mentioned only)
- Wonderbook: Book of Potions (Mentioned only)