Allergist and Immunologist Questions Hay Fever

Why does hay fever severity fluctuate

Some years my hay fever is unbearable, other years it's not a problem. Why is this?

11 Answers

Hayfever is affected by the intensity of the environmental allergens/pollutants, which fluctuate from year-to-year.
Hay fever is nothing more than seasonal allergies. So your symptoms depend on the season and how allergic you are.
Pollen, tree, and mold counts vary depending on moisture levels, weather patterns, wind, and geographical changes.
Hay fever is very dependent on the load of allergens in the air which is affected by:

(1) Season - Allergens are heaviest in spring and fall
(2) Climate/Weather - Rain and dry spells can affect seasonal variation of allergens

Most weather apps online now list the hay fever burden from season to season. Following these reports can help predict the need for antihistamines and nasal sprays (the latter can now can replace the need for antihistamine tablets) to treat hay fever. These medications can obviate the need for allergy shots which were used in the past!!!
It may have to do with the level of types of pollen in the air one year to the next. Check your area's pollen counts from year to year and see if you find any correlation with your symptoms
Hay fever is related to the amount of pollen in the air. It has to do with the location you are living and the pollen count in that area. That can fluctuate every year.
Hay fever triggers an immune response. Your body will respond to these allergens depending on the amount been encountered, frequency or length of exposure. New allergens will sometimes trigger an overwhelming response depending on the above exposure. Helpful tips to decrease a severe immune response: maintain a good immune system, including natural fruits and vegetables and adequate hydration.
Depends on the weather and other environmental factors like temperature, humidity if one year is worse than other.
depends on how much you are exposed to
The most likely explanation is a fluctuation in the types and levels of seasonal allergens you are exposed to from year to year. Environmental changes such as temperature and humidity fluctuations can change what plants and other allergens are most prevalent during any given season.
Different allergens are more prevalent in different years, so your exposure will change and your hay fever severity may change from year to year.