Hay fever
For many people, spring marks the start of the worst time of the year – hay fever season. Violent sneezing, a running or blocked nose, and reddened and watery eyes are the typical symptoms of hay fever. Hay fever is an allergic inflammation of the nasal airways that causes itching, swelling, mucus production, hives and rashes. Seasonal airborne irritants such as grass, tree, and flower pollens cause the allergic reaction.