Pollinosis is a medical condition caused by an allergic reaction to pollen. It is commonly known as hay fever. The condition causes symptoms such as runny nose, itchy eyes, sneezing, and congestion. There are several synonyms for pollinosis. These include seasonal allergic rhinitis, pollen allergy, hay fever, allergic rhinitis, and allergic conjunctivitis. While these terms are often used interchangeably, they all refer to the same condition. Pollinosis affects millions of people worldwide, and symptoms can range from mild to severe. Effective treatments such as antihistamines, nasal sprays, and allergy shots can help manage the symptoms and improve the quality of life for those who suffer from this condition.