What Is a Pollen Allergy? Pollen is one of the most common causes of allergies in the UK. Pollen is a very fine powder produced by trees, flowers, grasses, and weeds in order to fertilize other plants of the...
What Is a Pollen Allergy? Pollen is one of the most common causes of allergies in the UK. Pollen is a very fine powder produced by trees, flowers, grasses, and weeds in order to fertilize other plants of the...