Formication

Hey, I'm new here. I'm not 100% certain that I have histamine intolerance but it seems a lot of my symptoms are pointing in this direction. Does anyone experience formication? Like, the feeling of bugs crawling all over your skin, all day long? I also get these rashes - though I'm not sure what else to call them - they aren't very red, the often look like raised pimples, concentrated on my legs, arms, and upper chest/neck area. They seem to flare up in the evening and I'm itchy all over, and then the rash is usually gone by the morning. I also feel like my skin is crawling all the time lately, with or without this "rash". I've tried Claritin and Aerius which provided relief for some time but then stopped working. My doctor recently prescribed Rupall, which worked well for a few days but now the itchy/crawling feeling is back. I've tried prescription creams but they don't provide lasting relief either and aren't meant to be a long-term solution. Has anyone experienced something similar and found lasting relief somehow?

EDIT: I've found much better success with Ketotifen! Lasting itch relief. I'm able to enjoy higher histamine foods more without so quickly overfilling my bucket.