They’re synthetic (human-made) drugs that are similar to cortisol, a hormone your body naturally produces. Usually, your adrenal glands produce and release cortisol. Corticosteroids have a similar anti-inflammatory effect throughout your body, but in a way your provider can change and adjust to fit your needs. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.