Ingested allergens: milk, eggs, fish and shrimp, beef and mutton, seafood, animal fat, allogeneic proteins, alcohol, drugs, antibacterial agents, anti-inflammatory drugs, fragrance oils, flavors, onion, ginger, garlic, and some vegetables and fruits, etc.
-Inhalation allergens: pollen, willow, dust, mites, animal dander, oil smoke, paint, car exhaust, gas, cigarettes, etc. Lv Fuyun, Department of Respiratory and Digestive Medicine, Affiliated Hospital of Inner Mongolia University for Nationalities
-Contact allergens: cold air, hot air, ultraviolet light, radiation, cosmetics, shampoo, detergent, hair dye, insecticide, soap, chemical fiber products, plastic, metal jewelry (watches, necklaces, rings, earrings), bacteria, mold, viruses, parasites, etc. Injectable allergens: penicillin, streptomycin, heterologous serum, etc.
-Other allergens: mental tension, work stress, biological and physical-chemical factors such as microbial infections, ionizing radiation, burns, etc. that change the structure or composition of one’s own tissue antigens, as well as one’s own hidden antigens released due to trauma or infection, can also be allergens.