Common allergens or offending agents are categorized in the following groups:

FOODS:
Eggs
Dairy
Chicken/turkey/meats
Sugar
Grains
Yeast
Chocolate
Coffee
Alcohol, wine, beer
Soy
Artificial colors, preservatives and flavors
Corn
Fruits
Seafood, shellfish
Herbs/spices
Nuts
Nightshades
Oils
Salicylates
Vegetables

AIRBORNE/ENVIRONMENTAL:
Seasonal allergies - pollen, grass, trees, weeds
Mold
Fungus
Dust
Dust mites
Plants, plant phenolics
Flowers
Cats, dogs, animals
Sinus mucus
Sinus fungus
Perfume
Gas fumes
Hydrocarbons(car exhaust)

CONTACTANTS:
Cleaning products, laundry detergent
Fabrics
Metals
Paint
Paper/ink
Soap, lotion, make-up, sunscreen
Plastics
Chlorine

INTERNAL SENSITIVITIES:
Stomach acids
Digestive enzymes
Blood components
Systemic enzymes and acids
Hormones
Neurotransmitters

STIMULI/ATMOSPHERIC
Barometric pressure
Heat/cold
Electromagnetics
Moon cycles
Light/sound
Sunshine
Altitude

DRUGS/VACCINES/VACCINE ADDITIVES

SUPPLEMENTS:
Vitamins
Minerals
Amino acids
Fatty acids
Medicinal herbs
Homeopathics
Probiotics