During every season but winter, trees, weeds and grasses release tiny grains of pollen. If you breathe in those granules, it may trigger a type of allergy called hay fever.

The U.S. National Library of Medicine says typical symptoms of hay fever include:

• Sneezing, often accompanied by a runny or clogged nose
• Coughing and postnasal drip
• Itchy eyes, nose and throat
• Red and watery eyes
• Dark circles under the eyes

Source: HealthDay