7 doctors weighed in:
Why does hay-fever come at a certain time of the year?
7 doctors weighed in

Dr. Giana Nicoara
Internal Medicine - Allergy & Immunology
3 doctors agree
In brief: Specific triggers
"hay fever" is another name for seasonal allergies.
It comes at a certain time in the year, because it is related to specific allergens. Tree pollen causes symptoms in spring, grass pollen in summer, and weed pollen in fall.

In brief: Specific triggers
"hay fever" is another name for seasonal allergies.
It comes at a certain time in the year, because it is related to specific allergens. Tree pollen causes symptoms in spring, grass pollen in summer, and weed pollen in fall.
Dr. Giana Nicoara
Dr. Giana Nicoara
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Dr. Arthur Torre
Pediatrics - Allergy & Asthma
2 doctors agree
In brief: Pollen
Different pollens polliniate at different times of the year so depending on what you allergic to the symptoms vary.
For instance in the north east U.S., trees polinate in the early spring, next comes grass pollen, and then in the fall ragweed and other weeds cause heyfever symptoms.

In brief: Pollen
Different pollens polliniate at different times of the year so depending on what you allergic to the symptoms vary.
For instance in the north east U.S., trees polinate in the early spring, next comes grass pollen, and then in the fall ragweed and other weeds cause heyfever symptoms.
Dr. Arthur Torre
Dr. Arthur Torre
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