Winter is miserable for most of us, but spring - as bright and blooming as it is - can be just as rubbish for those who suffer from allergies.
Hay fever is a common allergic reaction in which our bodies react to the pollen in the air during the spring and summer season. When the pollen enters your body, your immune system sees it as an invader and starts reacting to attack it.
The body's response releases a chemical called histamine, which makes blood vessels wider and triggers allergy symptoms like a blocked nose or streaming, itchy eyes.