The main culprits of seasonal asthma are pollen, mould spores and dust mites. In summer, the air you breathe consists of pollens.
These microscopic particles stick to the moist lining of nose, eye and bronchial tubes.
They do not harm normal people, but they cause hay fever and asthma in people who have allergies.
In winter, trees begin to bud and people spend more time outdoors gardening, playing sports and enjoying the weather.
Spring can cause seasonal asthma in asthma sufferers.
Seasonal asthma from pollen:
Pollen from trees, grass and weeds cause allergic rhinitis and asthma. Pollination takes place in spring and result in high pollen counts.
In dry windy weather, lots of pollen is blown off the grass so that the pollen count can vary from time to time usually maximum on sunny breezy evenings. If there is a heavy rain, it washes pollen out of the air, so must asthma sufferers feel better after rainfall.
Seasonal asthma from mould spores:
The mould spores causes hay fever and seasonal asthma. Mould spores get airborne during the day and because spores are much smaller than pollen grains, they are more easily inhaled into the depths of the lungs.
In the early morning hours, millions of yeast appears and many asthma sufferers will have severe asthma attack.
In damp weather, more number of yeasts present in the air through the day, so asthma sufferers should keep their windows shut at night. Mould require a high level humidity making them much more prevalent in wet climates or following the rainy season of dryer climates.
Indoor mold growth takes place in the areas of the house where moisture is present such as bathrooms, humidifiers, and potted plants. Warmer temperatures also favor mold growth.
Seasonal asthma from dust mites:
Seasonal changes can affect the number of mites present, with lowest numbers occurring in temperature climates during the winter because of cold temperatures and indoor drying of air. In warmer climates, more dust mites are present during the rainy season.
Seasonal asthma triggers in spring:
- Mold spores increases
- Tree and grass pollen levels are at peak and last long because of mild winters.
- Due to increased humidity levels, dust mite count is increased
- In spring, air pollution tend to rise [Asthma and Air Pollution]
Controlling seasonal asthma:
- Close your car and house windows to keep pollen out.
- When dusting indoors and gardening outdoors, wear a mask over nose and mouth.
- Air conditioner or dehumidifier should be used to decrease indoor humidity and clean the filters regularly.
- When grass and pollen count is high, limit time spent outdoors.
- Dust inside the home should be controlled by damp cloth.
- Keep the rescue inhaler all the times along with you.
- Use vacuum cleaner with dust capturing filter.
- Clean ceiling fan blades before starting them up for the season.
Identify the seasonal and environmental factors that may worsen seasonal asthma. Use medications properly prescribed by the doctor for effective treatment of seasonal asthma. [Controlling Asthma Symptoms]