Below is an instruction from Human. Write a response.
    ### Instruction:
    How to prevent Asthma ?
    ### Response:
    You cant prevent asthma. However, you can take steps to control the disease and prevent its symptoms. For example:
                
Learn about your asthma and ways to control it.
                
Follow your written asthma action plan. (For a sample plan, go to the National Heart, Lung, and Blood Institute's "Asthma Action Plan.
    