to Nanny bar
I have et jak2+ I too have an itching problem it is so bad my skin is so thin that I actually broke the skin so my consultant at the hospital I attend sent me to see a dermatologist consultant at a different hospital he examined me a new straight away that the itch was down to my et he gave me a cream called double base which really works so it would be worth your while telling your consultant about your itch he may refer you to a dermatologist and maybe related to your pv
best off luck
stevengeorge