Toxic fog cure

Where can I buy a cure for toxic fog

That's not a disease in Celtic Doom. That's in Caerworn Castle. St Sampson's Oil cures it.

Enid the Alchemist sells it in that expansion.

Oh sorry my mistake it’s just that thought I learned the attack spell toxic fog in that expansion so I thought that’s where I could buy a cure for it

I was mistaken I meant to ask about a cure for toxic fire
I read it wrong sorry for the mixup

There is no Toxic Fire disease in any of our expansions as far as I can see, only Toxic Fog.