I’ve had serious skin itching for the past 11 years. An ENT started me on allergy shots back then and 4 months into the shots I started itching and have had it off and on since. Been to dermatologists(shots, prednisone, steroid creams, another allergist(tested me and said I had no allergies). Eosinophil level in blood has been high since allergy shots. Have eliminated bathing, medications, foods and still itching. Where do I go next?