This allergic sensitivity is often inherited. During late April and May the most common offending pollen is from trees. From late May to mid-July, the offending pollen is usually grass. From late August to the first frost, the leading cause of hay fever is ragweed pollen. Although the inhaled substance is usually a pollen, it can also be animal dander or something else your child is allergic to.
Hay fever is the most common allergy.
More than 15 percent of people have it. This is a chronic condition that will probably recur every year, perhaps for a lifetime. Therefore, it is important to learn how to control it. The best drug for hay fever is an antihistamine. It will relieve nose and eye symptoms.