Allergy symptoms commonly occur all at once and will continue as long as you are exposed to the allergen. Symptoms include red, irritated eyes, a runny nose with a clear, thin, watery discharge and sneezing that occurs commonly two or three times in a row, and sometimes a headache. Some people experience hearing changes, scratchy sore throats, hoarseness and a cough. Less common symptoms include balance disturbances, swelling in the face or throat tissues, skin irritation and even respiratory problems and asthma.
To identify what is causing your allergy symptoms, a doctor may recommend allergy skin testing, also called scratch tests. This test is done by scratching or pricking the skin to allow exposure, applying an extract of an allergen to your skin and then evaluating the skins reaction.
In addition to allergy testing, a physician can conduct a complete examination of your ears, nose, throat, head and neck. This can help determine if infection or a structural abnormality like a deviated septum or polyps are contributing to your symptoms.