<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi Doctor, I have arm swelling, and the skin on my arm and hand looks infected. Also, my nails have an irregular appearance, and I have lymphedema. What could be the problem?  <response>: Based on your symptoms, it seems like you may have osteomyelitis. It occurs when bacteria infect bones or bone marrow, and it can be a serious condition. I suggest we run some tests to confirm the diagnosis and start the appropriate treatment as early as possible. 