<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have a lump in my leg, my skin is irritated, and I feel like my ear is plugged. Also, Ive been having a lot of pain in my leg recently. What could be wrong?  <response>: Based on the symptoms youre describing, its possible that you have vasculitis. Its a condition where the blood vessels become inflamed, which can lead to a variety of symptoms including lumps or masses in the legs, skin irritation, ear problems, and pain. We should do some tests to confirm the diagnosis and develop a treatment plan. 