Your nose is almost constantly producing mucus. In fact, it makes approximately a quart of it each day. Mucus performs necessary functions including trapping bacteria and moistening the airways, but overproduction can lead to some annoying side effects.
When the weather turns cold, many people experience pain or discomfort in their ears, nose and throat. People often confuse symptoms caused by cold weather with illness or infection (or vice versa). It is important to know how cooler weather can affect your respiratory health.