[header] How to treat allergies in macaws [title] Avoid exposure to allergens. [step] Keep your bird in a clean environment away from any possible allergens. For example, your macaw may have seasonal allergies associated with pollen and mold. 
The best way to treat allergies is to avoid exposure to allergens as much as possible. [substeps] Similarly, if your bird has been diagnosed with a food allergy, stop feeding them that type of food.