Many allergy sufferers are looking forward to the start of birch and ash blossoming with a queasy feeling. The high allergy potential of the pollen is likely to dampen the joy of the imminent start of spring for some.
Depending on weather conditions, exposure to birch, ash and also hornbeam can be expected from about mid to late March. Hornbeam, a birch plant, has a rather low allergy potential, but there is often a cross-reaction with birch, alder and hazel.
|Main flowering||April to May|
|Note||frequent cross-reactivity with hazel, alder and hornbeam pollen, pollen-associated food allergies (apple, celery, nuts, carrot, ...)|
|Main flowering||March to May|
|Allergen potential||often overlooked allergologically|
|Note||cross-reactivity with the olive tree|
In a cross allergy, the body also reacts to substances that are similar in structure to the original allergy trigger. Although it can occur with a wide variety of allergies, (birch) pollen allergy sufferers are particularly often affected. If they experience symptoms as a result of eating certain foods, this is referred to as a pollen-associated food allergy. Such cross-reactions occur relatively frequently.
People who are allergic to birch pollen should be particularly careful with nuts, pome and stone fruit, celery and raw potatoes.
The so-called oral allergy syndrome occurs most frequently in birch pollen-associated food allergy. The following symptoms are typical when eating the food:
This article has been reviewed by unserem Medical-Team for accuracy of content.