Pollen, although harmless, causes the immune system to overreact. Infection-fighting chemicals are released by mast cells, a type of immune system cell. However hay fever is not as innocent as it may seem as they can also be the cause of frequent ear infections, sinus infections, and asthma.
If you suffer from hay fever symptoms every year and your immune system fails to respond to over-the-counter treatments, such as oral antihistamine medications or eye drops, you should consider getting a dose of hay fever injection. The injection will reduce the severity of your symptoms and help you get back to normal life.