Long term herceptin only anyone ? Need some advice from experience please

I am also on long term Herceptin and Perjeta and suffer insane itching. I cant find any solutions either, tried everything suggested. I did read recently that perhaps its neuropathy more than Perjeta. I was given a tube of emla cream by the nurses on Tuesday and this is the first thing to give me some actual relief, even if its short term. Oncologist dismisses it and not a priority, but he should try lying next to me one ,night, if I don't cut my fingernails very short I scratch hard enough in my sleep to take skin off.