How To Treat Dermatitis In Fingers Leading To Bleeding And Itchiness?

I have severe dermatrtis on 3 fingers of each hand. Have tested for alergies, have none. Skin extremely dry, itches, no fungal infection. have had ultraviolet treatments & have stlopped them due to no betterment. Have tried over 25 creams to no permanent avaIL. cracking. bleeding, pain, swelling continue. 4 dermatologists & no cure. I AM SO DESPERATE. PLEASE ADVISE. uSE a&d OINTMENT & EQUATE. oNLY HELP A LITTLE. cORTIZONE, TRIPLE ANTIBIOTIC OCCASIONALLY.