National Heart, Lung, and Blood Institute

Welcome to So You Have Asthma - your one-stop source for the latest information on controlling your asthma provided by the National Heart, Lung, and Blood Institute. This guide offers practical suggestions to help you manage your asthma. It contains information about the most effective asthma medications and describes how to take them. It provides a list of possible asthma triggers and recommends ways to reduce your exposure to those that affect you. It also includes information about common warning signs of an asthma attack and explains how to act quickly to keep your asthma symptoms from getting worse.