[jackvalentine]

My mother in law experiences mild ‘spices’ like oregano or yellow mustard as too spicy and burning.

Genetics? Who knows but they’re out there.

[aviditas]

Maybe a mild food allergy? I know someone who has that reaction to rosemary and another friend who has it from tomatoes. A simple skin test showed both to be an allergy vs palate issue. Could just be sensitive to spices but it is a fun thing to figure out.

[jackvalentine]

Interesting idea, I think she has the same response to rosemary. Her diet is concerningly limited in variety overall.