Hi, I am a 50 year old, pale skinned blonde woman. I have a scab on my hand that I have had for years. I think it started as a scratch from a rose, and never healed. It doesn t bleed. It is just a raised, scabby area. Occasionally the scab comes off ( or I pick it off) and then it grows back. I have had it covered with a bandaid and mild antiseptic cream for a month, but it is not healing. I have always had very thin skin on the back of my hands,