Kids With Food Allergies
A Division of the Asthma and Allergy Foundation of America
4259 W Swamp Rd, Suite 408, Doylestown, PA 18902
Phone: | Fax:
The condition is actually quite common although many people affected by it have never even heard of OAS or PFS. Whilst you do not actually have to suffer from any of the usual hayfever symptoms to have OAS, you do need to test positive to pollen. The type of pollen you are allergic to will affect the range of fruits, vegetables or nuts you react to. In the . and UK birch tree pollen is the most common type involved in these cross reactions with around 50 to 75% of who are allergic to the pollen also showing OAS symptoms. In general around 40% of hay-fever sufferers will experience some degree of pollen-food allergy syndrome.