Thanks so much...yes I have tried pretty much everything you mentioned. Currently using Nioxin scalp recovery shampoo....I'm also trying to prevent hair loss. As I said none of the biologics have worked so far. Last night was horrendous.....I was awake until 4am with severe itching on both scalp and arm....the itching arm I actually think was caused by Covid....no rash just unbearable itch which I spread with Dermovate and Elocon and cider vinegar!! Anything for a moments relief......has anyone else experienced this pruritis post covid??