Budecort inhaler is a corticosteroid medicine used to prevent and treat asthma and other chronic respiratory disorders.  It contains budesonide, which reduces inflammation and swelling in the airways, making breathing easier.  Budecort, unlike rescue inhalers, is not meant to provide instant relief during an asthma attack; rather, it is taken on a daily basis as a maintenance medication to avoid flare-ups and manage long-term symptoms.  Consistent use can help to reduce the frequency and severity of asthma symptoms.  Common adverse effects include throat discomfort, coughing, and hoarseness.  To reduce the risk of oral thrush, users should rinse their mouth after every usage.