Most of us have had the experience -- walking outside on a cold, winter day, and your nose turns into a faucet. You're not sick, and your nose wasn't running when you were indoors. But the cold (or windy) weather does it every time -- you need Kleenex around just so your nose doesn't drip all over your face and clothes. What's the deal? It's not an allergy, but a non-allergic phenomenon known as vasomotor rhinitis. Most allergy medicines won't help these symptoms -- but if symptoms are severe, or you're planning on spending lots of time outdoors in cold weather -- there is a prescription nasal spray called ipratropium bromide that can dry up that drip.