Hay fever classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Classification

The two categories of allergic rhinitis include:

Seasonal – occurs particularly during pollen seasons. Seasonal allergic rhinitis does not usually develop until after 6 years of age.
Perennial – occurs throughout the year. This type of allergic rhinitis is commonly seen in younger children.^[1]

References

Classification