I'm 29 years old and recently was told by my doctor I have eczema on my hands. I have it really bad. Everything they prescribed me has not worked. It is very painful. I can't take the itchiness and the knife like cuts on my fingers. And I also have a new concern, I noticed a brownish color on my right hand on my knuckle area slighty on my finger near pinky. What could this be and should I be worried??