Question 1

What is pollen and why does it cause hay fever?

Accepted Answer

Pollen is a fine, powdery substance that's produced by flowering plants as part of their reproductive process. It consists of a plant's male reproductive cells, which can fertilise the female reproductive cells of other plants. Pollen is usually spread by the wind or by insects.

If you have a pollen allergy, otherwise known as [hay fever](https://www.livi.co.uk/medical-advice/allergies-intolerances/hay-fever/), inhaling pollen can trigger an immune response that causes symptoms like sneezing, congestion and itchy eyes.

Question 2

What is a pollen count?

Accepted Answer

A pollen count is a measure of the amount of pollen that's present in the air. It's usually measured in grains of pollen per cubic metre of air, and can be used as an indicator of how severe your hay fever symptoms might be.

If the pollen count is high and you're allergic to pollen, it's best to take precautions like staying indoors and keeping windows closed.

Question 3

When is hay fever season?

Accepted Answer

[Hay fever](https://www.livi.co.uk/medical-advice/allergies-intolerances/hay-fever/) season typically starts in March or early April and lasts until September, though it can depend on different factors like the weather conditions and the type of pollen in the air.

It's always a good idea to check the pollen count during hay fever season and follow guidance to manage any hay fever symptoms.

Question 4

When does tree pollen peak?

Accepted Answer

Tree pollen is typically around in early spring, with the peak from late March to mid-May. Tree pollen is released by oak, ash, birch, and maple trees, among others. If you're allergic to tree pollen you may experience hay fever symptoms earlier in the year.

Question 5

When does grass pollen peak?

Accepted Answer

Grass pollen is released in late spring and early summer, with the peak season being from mid-May to the end of July. Grass pollen is released by a variety of grasses including Timothy, Bermuda, and Kentucky Bluegrass.

Question 6

Should I see a doctor about a pollen allergy?

Accepted Answer

Over-the-counter remedies from a pharmacy can help relieve symptoms of [hay fever](https://www.livi.co.uk/medical-advice/allergies-intolerances/hay-fever/). If you have a severe pollen allergy that's affecting your daily life, or over-the-counter medications aren't helping, a GP can provide further care.

Pollen information

What is pollen and why does it cause hay fever?

What is a pollen count?

When is hay fever season?

When does tree pollen peak?

When does grass pollen peak?

Should I see a doctor about a pollen allergy?

Advice for hay fever

Why does hay fever cause an itchy throat? The link between pollen and oral allergy syndrome

A guide to managing hay fever in children

A doctor's guide to managing the hay fever season

Speak to a GP