example 5 use the result of example 3 to find the average rate of change of from 3 to 0 the average rate of change of from 3 to 0 is a 0 3 3 1 a difference quotient can also be used to define a function that allows us to determine the average rate of change
This is called post-nasal drip. When this happens, individuals will feel chest pain and other symptoms of chest congestion aside from the allergy symptoms. Treatment of chest congestion caused by seasonal allergies is related to the treatment of the allergy.
How Allergies Cause Sinusitis If you have allergies, your body is reacting to allergens in the environment. When the allergen comes into contact with immune cells (mast cells) in your nose and sinuses, histamine is released.