Since these triggers are present all the time, these allergies are said to be perennial. For other people, pollen from trees, ragweed from grass, or weeds can be the culprit, and they usually have symptoms only during certain seasons. These people have seasonal allergies. A few people suffer from both perennial and seasonal allergies. They may have symptoms all year round, but they tend to be worse during certain seasons.
Many people mistake nasal allergies for a trivial disease.
In truth, the symptoms can have a powerful effect for the one in five Americans who suffer from them. They can diminish the quality of your life by causing fatigue, headache, and changes in your ability to think and function well. What s worse, many of the available treatments can cause drowsiness and impair your ability to perform everyday tasks. Avoiding triggers entirely is probably not possible. But you can do a number of things to your environment to minimize them.