Prednisone is a synthetic corticosteroid medication commonly used to reduce inflammation and suppress the immune system. It is often prescribed for conditions such as allergies, asthma, arthritis, and autoimmune diseases. Prednisone works by mimicking the effects of hormones produced by the adrenal glands, helping to decrease swelling and pain. This medication can be taken orally in tablet form or as a liquid. While effective, prednisone may cause side effects, including weight gain, mood changes, and increased risk of infections. It is important to follow a healthcare provider's instructions when using prednisone to minimize potential risks.