Complex Regional Pain Syndrome (CRPS) is a chronic pain condition that typically affects an arm or leg, characterized by intense pain and changes in skin color and temperature.

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

Chronic autoimmune disease causing inflammation, pain, and joint damage in the body, especially in hands and feet.

CIDP is a long-term neurological disorder characterized by inflammation and damage to the peripheral nerves.

AIP is a rare genetic disorder causing recurrent attacks of abdominal pain, neurological symptoms, and sensitivity to light.