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Inflammation is the body's response to injury. This is true regardless of whether the injury results from a cut, burn, bruise, infection, or even an autoimmune disease such as rheumatoid arthritis. The inflammatory response includes redness, swelling and an increased local supply of white blood cells. Even after trauma, however, the inflammatory response may be excessive and result in unnecessary pain. In some conditions, as with rheumatoid arthritis, the inflammation serves no useful purpose and is actually a component of the disease rather than part of the healing process.
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