Complex Regional Pain Syndrome (CRPS) is a chronic pain condition characterized by severe, continuous pain typically affecting an arm or leg.

CRPS is a chronic pain condition characterized by severe pain and changes in skin color and temperature.

Complex Regional Pain Syndrome (CRPS) is a chronic condition causing severe pain, often in a limb, accompanied by swelling and changes in skin color and temperature.

Rheumatoid arthritis is a chronic autoimmune disorder that causes inflammation and joint pain.

Polymyositis is a rare autoimmune disease causing inflammation and weakness in multiple muscles.