Hello my problem started 10 months ago. I developed an extremely itchy hives on my one hand. 2 days later they multiplied and I developed lesion on my legs and upper back. Went to a GP she said I have scabies. I live in Canada so the pills Invermyicin is not approved. I follows all her instructions. Environmental and applied Permethrin cream called nix. More kept showing up with huge scaring. I did the Nix cream 10 times. Had my condo assessed 6 times for bed bugs. Specially trained dogs couldn t find one. Finally saw a dermatologist who did not run any tests. He said it is stress. I m going nuts. Sometimes I find tiny hard black balls on my skin and on bedding. I have to take at least 6 benydral per day just to survive. What is causing this?