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Prednisone and other corticosteroids

How do corticosteroids work?

Corticosteroids help lessen swelling and irritation, called inflammation. The medicine can ease symptoms of inflammatory conditions, such as arthritis, asthma and skin rashes.

Corticosteroids also lower immune system response. This can help manage conditions in which the immune system becomes too active and attacks the body's own tissues by mistake. These are called autoimmune conditions.