Medical magic: unknown, but presumably treats a cough.
References from the canon
Weasleys' Wizard Wheezes' Owl Order Service repackages some of their potions as cough potions to get them past security checks, such as Filch's blanket ban on their products at Hogwarts (HBP15)
cough potion
Magic Type
Concealment Healing magic Potion making
Commentary
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