What can i do to prevent my child's asthma from occurring?

See an allergist: Once you have identified your child's allergic triggers with the help of skin testing, do your best to avoid exposure to them. Avoid irritants that trigger your child's asthma, such as scents, smoke, fumes, etc. To minimize the extent of symptoms that are beyond your control, develop an asthma action plan with your allergist, and stick with it. Controlling asthmatic inflammation prevents attacks.

Take prescribed meds: If your child has been diagnosed with asthma, the most important things you can do to prevent asthma symptoms are to administer medications as prescribed by your pediatrician and to avoid potential allergic triggers.

Depends: There are a lot of variables and knowing no details makes answering this question difficult. However, it depends on frequency of symptoms and triggers. If symptoms are frequent (weekly) then preventive therapy with inhaled corticosteroids is indicated. If symptoms are related to certain exposures (i.e. Cats) avoiding trigger might help. Exercise induced symptoms can respond to albuterol pre-exe.