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.
It often affects people with food allergies. Food allergies are thought to affect 5-8% of children and 1-2% of adults. Very severe allergic reactions can cause swelling of the throat, which can cause breathing difficulties and a sudden fall in blood pressure. This type of extreme allergic reaction is known as anaphylaxis and is a medical emergency.