1. Avoid caffeine such as in chocolate, coffee, tea and other byproducts of these foods and beverages.

  2. Refined sugar is another mucous-causing food. Avoid foods with added sugars, especially ones high in refined and processed sugars.

  3. Avoid dairy products, especially milk, as they cause excess mucous to build up.

  4. Some carbohydrates produce excess phlegm in the nasal cavity, such as pasta, cereal and other bread-like foods made with white flour. These must be avoided.

  5. Soy also increases mucous in the body and can overload the mucous membranes throughout the body.