Corticosteroids are a class of steroid hormones that are produced in the adrenal cortex and have potent anti-inflammatory and immunosuppressive effects. They are commonly used in medicine to treat a variety of conditions, including autoimmune diseases, allergic reactions, and inflammatory disorders. Corticosteroids work by inhibiting the production of inflammatory molecules and suppressing the immune response. They are available in various forms, including oral tablets, injections, and topical creams. Despite their effectiveness, long-term use of corticosteroids can have side effects, such as weight gain, mood changes, and an increased risk of infections.