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.
In the skin symptoms include redness and nettlerash (hives, wheals). In the breathing tubes allergies cause wheezing, cough and shortage of breath (asthma), whereas in the gut symptoms such as abdominal discomfort (âtummy acheâ), nausea, vomiting and diarrhoea may occur. Severe allergies may result in throat swelling, severe asthma and a drop in blood pressure.