| http://www.w3.org/ns/prov#value | - There are three main types of allergies: food-based allergies, which are treated by an elimination process of certain foods from the dog's diet; contact allergies, caused by a reaction to a topical substance such as bedding, flea powders, dog shampoos, and other chemicals, and treated by removing the cause of the allergy; and inhalant allergies, caused by airborne allergens such as pollen, dust, a
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