My allergies aren't as bad as they used to be, but mold can still kill me in higher concentrations. I also have a slight pressure allergy so any constricting clothing will leave a mild rash after it is removed. My allergies were so bad when I little if I went outside in the fall or spring without my inhaler it could have killed me.
My mom has it worse: she is severely allergic to peppers (you know, the kind that get put in damn near everything these days), melons (including cucumbers), pressure (worse than me), and cold. I kid you not, she gets hives and stuff from cold temperatures. Why she still lives this far north is kind of a mystery to me.
My dad has an alcohol allergy; mostly it just turns him pink, but supposedly it has some other issues, too.