allergy word block on white

hypersensitivity allergic reaction sensitivity immune system asthma allergen hay fever rhinitis eczema itching redness swelling anaphylaxis immunotherapy allergist allergology histamine antihistamine conjunctivitis food allergy skin rash pollen mold dust mites sinusitis sneezing hives testing patch immunoglobulin ige atopic dermatitis urticaria respiratory contact seasonal airborne allergens pediatric latex oral syndrome medications shots avoidance cross-reactivity release sinus prevention sensitization