Get a Flu Vaccine for Asthma Prevention
Get a flu shot every year to protect against the flu virus, which almost always makes asthma much worse for days to weeks. People with asthma are more likely to have complications from the flu, such as pneumonia, and are more likely to be hospitalized because of the flu. Also, those over age 19 should get a pneumonia shot (called Pneumovax) once every five to 10 years. People with asthma are about twice as likely as others to get pneumococcal pneumonia, a common type of bacterial pneumonia.
Consider Allergy Shots (Immunotherapy) for Asthma Prevention
If your doctor finds that you have allergies, allergy shots (immunotherapy) may help prevent allergy symptoms and worsening of asthma. With allergy shots, small doses of allergens are injected under your skin on a regular schedule. Over a period of time, your body may become accustomed to the allergen and less responsive to it upon exposure. This can help prevent a worsening of asthma.
For more detail, see WebMD’s article Allergy Shots for Asthma.