Symptoms are caused when allergens or irritants create excessive congestion in the normal breathing process. Both perennial and seasonal allergic rhinitis cause the same symptoms, which may include:

• Runny nose and nasal congestion
• Itchy, watery eyes
• Itchy nose, ears, or throat
• Sinus pressure
• Headache
• Sneezing
• Dark circles under your eyes (also known as “allergic shiners”)
• Post-nasal drip
• Fatigue
• Decreased sense of smell and taste
• Chronic cough