Corticosteroid medications are a type of drug that mimics the hormones produced by the adrenal glands, which are located on top of the kidneys. These medications help reduce inflammation and suppress the immune system, making them useful for treating various conditions like asthma, arthritis, and allergies. They can be taken in different forms, including pills, injections, or topical creams. While corticosteroids can be very effective, they may also cause side effects, especially with long-term use. Common side effects include weight gain, mood changes, and increased risk of infections. It's important to use these medications under the guidance of a healthcare professional to manage their benefits and risks effectively.