Seasonal allergies show up at the same time of the year every year, if you continue to live in the same part of the country. Hay fever is the most common seasonal allergy. Symptoms of seasonal allergies include:

• Itchy, watery eyes.
• Sneezing.
• Runny, stuffy, or itchy nose.
• Temporary loss of smell.
• Headache and fatigue.
• Dark circles under the eyes ("allergic shiners").
• Drainage from the nose down the back of the throat (postnasal drip).
• Sore throat or coughing.
• Snoring.