I Have Been Having Pain In My Left Wrist For

I have been having pain in my left wrist for a month now and getting worse. At first I thought maybe carpul tunnel, then maybe I sprained my wrist. But I do no have symptoms of carpal tunnel. My wrist is swollen a little and my bone hurts on the inside of my wrist. It has gotten worse in the past week. I had been wearing a wrist band with the metal in it, so I did no bend my wrist. A friend of mine looked at it last night and had the exact same thing and said its a cyst like a calcium deposit. I am so uncomfortable and in pain when moved in a certain way. What can I do. Rose Criscione