This is partly due to the cold, dry air that occurs in winter affecting the wellbeing of asthma sufferers. Symptoms can include chest tightness, shortness of breath, coughing and wheezing. Whilst there is not much you can do to avoid the winter (unless you actually jet off to a warmer climate every year!), there are things that you can be aware of that act as triggers for your asthma. Avoiding these triggers should help to improve your health during those difficult winter months.
Winter is the most common time for Flu and colds to occur. These can be coupled with infections such as sinusitis, and can be unpleasant, even for those who do not have the added complication of asthma. Flu can be a serious threat to the wellness of asthmatics, however, as it can lead to pneumonia or other complications, even if your asthma is not severe. This can be guarded against by getting a flu vaccine (which asthmatics are entitled to) and by being vigilant about washing your hands and, as far as possible, keeping your distance from sickly friends.
Dust is also a common asthma trigger. A minimum of 30 percent of cases of asthma in adults are triggered by an allergy, such as dust. Dust is everywhere, so it is impossible to avoid, but cleaning your house thoroughly once a week can help to keep the levels to a minimum. Covering your pillows and mattresses in dust-proof covers can also help.
Cigarette smoke is an important contributor to asthma (either first or second-hand). Smoke can also contribute to asthma when it comes from other sources, such as a fuel-burning stove. During the colder winter months, try to find alternative sources of heat rather than wood-burning stoves.