My nose is constantly runny, especially when I’m eating. What could cause this? —R.F., Brook Park, Ohio

It sounds like vasomotor rhinitis. This common but benign condition causes the blood vessels in your nose to swell and produce excess mucus, especially in response to spicy foods and strong odors, but also from changes in temperature and humidity or even strong emotions. If you can identify the triggers, you may be able to neutralize or avoid them. While drugs won’t completely eliminate the problem, intermittent use of a prescription oral decongestant, antihistamine, or steroid nasal spray can provide limited relief. Avoid over-the-counter decongestant nasal sprays such as oxymetazoline (Afrin and generic), which can worsen symptoms.