Is eyrathema nodosum an autoimmune dissease?

Yes, erythema nodosum is considered an autoimmune disease. It is a rare skin condition that is characterized by the presence of tender, red, and swollen bumps on the legs. It is thought to be caused by an immune reaction to certain triggers, such as infections, medications, or other underlying medical conditions. In erythema nodosum, the body's immune system mistakenly attacks its own tissues, leading to inflammation and the formation of these bumps. Treatment typically involves managing the underlying cause and providing symptomatic relief.