4. A dry cough
A cough is a symptom that is commonly associated with several types of medical conditions, including a cold, the flu, and bronchitis; it can also be a symptom associate with allergies. There is a difference in the type of cough you will experience when you have an illness and when you have allergies. If the cough is associate with allergies, it will be more of a dry, hacking cough. In other words, it won’t produce much phlegm, but rather it will be more a nuisance-type cough.
Furthermore, the cough will commence when you are exposed to your allergen and will subside when you are no longer near it. If you’re allergic to something in your house, you might experience coughing while you’re home and the coughing will likely subside when you leave. If you develop a dry cough that waxes and wanes, it could be allergies.