1, skin prick test: detects whether there is allergen-specific IGE bound to the surface of mast cells in the skin, and is used to diagnose various food allergens and airborne allergen-induced tachyphylaxis. High value for the detection of airborne allergens (dust mites, cockroaches and animal dander). 2, patch test: detection is a delayed allergic reaction, detection of contact-induced reactions. 3, serum-specific IGE test: belongs to the in vitro test, and skin prick test has a better consistency, suitable for detecting the body hypersensitive state, there are oral anti-allergic drugs are not suitable for other detection methods fold.