I too am allergic to morphine and yet was given Diladid which contains Morphine and Vicodin. I went into the surgeons office and she saw that I was scratching my legs with the end of my cane, I was really going at it! She gave me a prescription called Visteril, it worked great except that it knocks you out! But I was relieved of the itching for two days. I actually found a combo of drugs that seem to work for me, in the morning I take two Neurontin and two hours later 2 Norco. I found that neither of them work well enough alone and with the combo I'm able to stay up for the greater part of the day and although I still get some leg pain from the knees down, if I walk it relieves the pain or I sit and crochet which keeps my mind on what I'm doing and not on the pain. Hope you feel better, I know the itches can drive one mad! I will keep you in prayer.