The National Allergy, Asthma, & Urticaria Centers of Charleston offers health care services for adults and children who suffer from allergies, asthma and immunological disorders. The center employs physicians, nurse practitioners, nurses and office professionals. It operates a research department that conducts clinical trials to study allergic rhinitis, sinusitis, urticaria and headaches. The center s physicians attend regional, national and international conferences, as well as reviews literatures, textbooks and online databases. The National Allergy, Asthma, & Urticaria Centers of Charleston provides online information on topics related to hay fever, vocal cord dysfunction, smoking cessation and immune deficiencies. The National Allergy, Asthma, & Urticaria Centers of Charleston is located in North Charleston, S.C.