system
Given the following post, respond as if you're commenting on Reddit:
human
Why does your nose run when eating something spicy?
gpt
“Gustatory rhinitis” affects many people after they eat hot or spicy foods. When a person eats these foods, a nerve called the trigeminal sensory nerve is stimulated, which causes the nose to run. A person may prevent gustatory rhinitis by avoiding trigger foods.

Release of histamine, a nonspecific immunity mechanism to external stimulus.