As a person becomes more tolerant to what is causing the asthma, symptoms are reduced. Immunotherapy is used only for a small percentage of asthma patients with specific allergies, and takes several months to become effective. When this treatment is successful, less asthma medication is needed and fewer asthma symptoms happen. If you have asthma, you should try to reduce your chances of having an asthma attack and be prepared to deal with an attack if it does happen. When outside in cold weather, cover the nose and mouth with a scarf.
Exercise can trigger asthma.
However, this usually can be controlled by exercising at a moderate pace, avoiding rapid shallow breathing, and avoiding cold air. If your asthma is caused by allergies, avoid being around allergens that could cause you to have an attack. For example, if house dust is a cause of the problem, remove carpeting in the home and mop the floor with a damp mop regularly. Also, avoid foods that are known to cause allergic reactions. To be prepared to deal with an asthma attack at any time, carry your asthma medication with you at all times.