From *The Long Lost Friend*:

Convulsive FeversWrite the following letters on a piece of white paper, sew it on a piece of linen or muslin, and hang it around the neck until the fever leaves you:

A b a x a C a t a b a x

A b a x a C a t a b a x

A b a x a C a t a b a

A b a x a C a t a b

A b a x a C a t a

A b a x a C a t

A b a x a C a

A b a x a C

A b a x a

A b a x

A b a

A b

The grimoire **The Long Lost Friend** lists this spell.