Chronic Urticaria, also known as chronic spontaneous urticaria, is related to chronic inducible urticaria and angioedema. An important gene associated with Chronic Urticaria is HRH1 (Histamine Receptor H1), and among its related pathways/superpathways are Innate Immune System and Immune response NFAT in immune response. The drugs Tranexamic acid and Benralizumab have been mentioned in the context of this disorder. Affiliated tissues include skin and thyroid, and related phenotypes are homeostasis/metabolism and immune system