What is Hayfever?

Hay fever is an allergic reaction to grass, plant or tree pollen. This pollen is released in the flowering period. If you are allergic to tree pollen, your complaints may start as early as February. Grass flowers later, from May onwards. Pollen is moved by the air. Pollen levels in the air are generally very high on sunny, windy days.

HAL Allergy Corporate

HAL Allergy is a modern company with high quality pharmaceutical, manufacturing and research facilities located at the Bio Science Park in Leiden. With offices in seven European countries, HAL Allergy is one of the top European players in the field of allergy vaccination. It has more than 50 years experience in developing, producing and selling allergy therapies that may diminish or erase allergic reactions all together. The allergy vaccinations are used primarily against common allergies such as hay fever, house dust mites and allergic reactions towards wasp or bee stings.

HAL Allergy Leiden

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What is Hayfever?

HAL Allergy Corporate

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HAL Allergy Leiden