Current treatment plans recommend prevention medications such as an inhaled steroids (helps to decrease inflammation and swelling of the airways) in anyone who has frequent symptoms. This includes daytime symptoms more than twice a week or greater than two nights a month. If symptoms persist, additional preventive medications are added until the asthma is controlled. With the proper use of preventive medications, asthma should not keep your child from doing anything they want to do.
Asthmatics sometimes stop taking their preventive medication when they feel Fine, but this can result in further attacks and no long-term improvement so talk with your provider first.