title: Urticaria and angio-oedema.
abstract: Urticaria and angio-oedema are a symptom complex covering a wide range of clinical disorders. Specific types are now well described, and it appears that many cases of idiopathic chronic urticaria which make up the vast majority of patients referred for assessment are due to intolerance to natural salicylates, preservatives and colouring agents. There is, therefore, an urgent need for legislation to enforce the clear identification of these chemicals in processed food and drugs.
mesh_terms: D000799:Angioedema / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D003080:Cold Temperature / Q000009:adverse effects; D064420:Drug-Related Side Effects and Adverse Reactions; D005505:Food Coloring Agents / Q000009:adverse effects; D005520:Food Preservatives / Q000009:adverse effects; D006635:Histamine H2 Antagonists / Q000627:therapeutic use; D006801:Humans; D012459:Salicylates / Q000009:adverse effects; D014581:Urticaria / Q000175:diagnosis / Q000209:etiology / Q000628:therapy
chemical_list: D005505:Food Coloring Agents; D005520:Food Preservatives; D006635:Histamine H2 Antagonists; D012459:Salicylates