Factitious wealing at the site of previous cutaneous response.
D000485:Allergens; D004485:Eczema / Q000276:immunology; D006632:Histamine / Q000494:pharmacology; D006801:Humans; D007299:Insect Bites and Stings / Q000276:immunology; D011565:Psoriasis / Q000276:immunology; D012867:Skin / Q000276:immunology*; D012882:Skin Tests; D013997:Time Factors; D014581:Urticaria / Q000276:immunology
D000485:Allergens; D006632:Histamine