Anyone ever tried low dose naltrexone for itching?

Anyone ever tried low dose naltrexone for itching? If so did it help, or have bad side effects? I had a bad reaction, racing heart, felt out of my body somewhat and weird, very nauseous and dizzy, wondering if that passes is if you keep taking it.

I havent but I was prescribed Hydroxyzine for itching and to help sleep at night. It helps me.

that was the first thing they tried it does nothing. Doesn’t even help me go to sleep. I don’t respond to antihistamine at all either. Got denied for dupixent and photo therapy. Naltrexone is the only thing they’ll pay for, and prednisone it’s the only thing that works, which I’ve been on it a long time I need to get off, thinking I should give it a try again maybe I was just having a bad day.