Turns out, there are a lot of culprits for the phenomenon, and not everyone's nose is running for the same reason.
"It’s very individualized," says Sherry Ross, MD, OB/GYN and Women's Health Expert at Providence Saint John’s Health Center in Santa Monica, CA. According to Dr. Ross, one person may be getting over a week-long virus, while another might be struggling with a mild, recurring cold. And another may just have allergies. (Yes, you can still get those in winter.)
Clearly, the answer to your runny nose problems isn't one-size-fits-all. Ahead, we've rounded up nine reasons your nose won't stop running in winter, and what to do about each one.