Intense deep itching 2 years post tummy tuck - I itch until it bleeds

2 years ago I had a tummy tuck. Recently at night, I've got itching and it's deep and intense from the navel to the mons. Above navel is fine. I'm itching with loofahs, towels, finger nails, scrubbing sponges, anything I can! At times I will cause bleeding. I can't relieve it with Benadryl or lotion. use ice for hours -no luck. I don't notice it in the day but it's torture at night. Can't sleep. Why is this happening and how can I stop it! Help! Anyone is Phoenix who could see me?

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