You have my sympathy. I was first diagnosed by biopsy in 1992 following a major surgery for a melanoma on my back. I had no itch for 15 years but in 1997 and 1998 I had a terrible itch for 18 months. After giving up on my dermatologist I went to a new one at UCSF who prescribed 300 mg of Gabapentin every night. It worked pretty quickly and I had no itch for the next 13 years. I took the Gabapentin the entire time and had no issues. In late 2021, it quit working and I have been itching since then. I took cilantro capsule for five months along with chlorella capsules. Did not work. I have tried pretty much every lotion and the only one that gives me enough relief to sleep is Eucerin Itch Relief. That with Hydroxyzine is getting me by