We diagnose and treat asthma, allergic rhinitis (hayfever), food allergies and eosinophilic gastrointestinal disorders (eosinophilic esophagitis), eczema (atopic dermatitis and contact dermatitis) and itchy rashes, urticaria (hives), gluten hypersensitivity, drug allergy, aspirin intolerance, hymenoptera hypersensitivity (insect and bee sting allergy), COPD and emphysema, immune deficiencies such as CVID...