Hi i have suffered for a couple of years with arm rashes it is sore, itchy and has scared my arms. i have used different creams but hasn't work.

Chronic Rashes: Chronic, long-term rashes have many different causes, and require a physical examination for diagnosis. Ideally this should be performed by a physician who you can follow up with, so that different treatments can be monitored for their effectiveness over time. Some rashes are more complex, and require consultation with a dermatologist.