What Causes Itching And Bleeding In Arms?

Hi I used liquid dail complete antibacterial soap on my hands for about 7 months, after about 4 months my hands turned really dark, and itch and bleed, and now its growing up my wrists and to my arms, its painful and bleeds I stop using it about a month ago and have been using cortisone, but its still getting worse and growing every day, the bleeding and pain are really bad, nothing works, something, the skin on my hands are dark and rough now, and disfiguring.