title: Skin test wheal size and erythema not reduced by topical antihistamine.
mesh_terms: D000287:Administration, Topical; D000631:Aminopyridines / Q000008:administration & dosage*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004890:Erythema / Q000517:prevention & control; D006634:Histamine H1 Antagonists / Q000008:administration & dosage*; D006801:Humans; D006969:Hypersensitivity, Immediate; D011537:Pruritus / Q000517:prevention & control; D011738:Pyrilamine / Q000008:administration & dosage* / Q000031:analogs & derivatives; D012882:Skin Tests
chemical_list: D000631:Aminopyridines; D006634:Histamine H1 Antagonists; D011738:Pyrilamine