Common allergens

My 12 year old son has chronic sinusitis and bronchitis. I'm thinking he must have allergies either to foods or pollens/molds? Are there certain allergens I should be looking for in reference to the

Bee pollen
Wine and Beer (due to the Tyramine content)
Coffee (due to the caffeine content)
Dairy foods such as cheese and milk due to the lactose or casein content
Wheat (due to the Gliadin from Gluten)
Citrus fruits (especially oranges)
Pineapple (due to the Tyramine content).
Peanuts (due to the Lectin and mould content)
Soy products (soy beans, tofu, soy milk)
Chocolate (due to the Tyramine content)
Nuts (due to the proteins or moulds)
Shellfish (due to proteins)
Respiratory allergens (pollution, smoke, moulds, pollens, dust, animal dander, fungi)

Excessive consumption of simple sugars
Cosmetic Ingredients such as Propylene Glycol (applied topically as a constituent of some Skin care products)
Hypochlorhydria (insufficient production of Hydrochloric Acid)
Intestinal Permeability (leaky gut, Crohnes Disease, Colitis, Coeliacs Disease)
Chronic dehydration
Food additives such as Sodium Metabisulfate
Candida albicans proliferation may allow antigens to enter into the circulatory system
Pharmaceutical Drugs Sulfonamides (a group of pharmaceutical Antibiotics)

For further information see the Ask a Naturopath.com webpage concerning sinusitis and allergies