When the pollen count climbs, hay fever (allergic rhinitis) makes life miserable: sneezing, a runny or blocked nose, and itchy, watery eyes. The HSE says it cannot be cured, but the symptoms respond well to treatments you can buy over the counter from us.

Why it happens

Symptoms come from your immune system overreacting to pollen and releasing a chemical called histamine. Antihistamines work by blocking that histamine, which is why they are usually the first step.

Antihistamine tablets: non-drowsy vs drowsy

The HSE lists cetirizine, loratadine and fexofenadine as the main modern, non-drowsy antihistamines, which suit daytime use. Our Cetrine Allergy (cetirizine) tablets are a popular once-a-day option.

Older antihistamines such as chlorphenamine (in Piriton) work well but can make you drowsy, so some people find them useful at night when itching disrupts sleep. Do not drive or use machinery after taking one until you know how it affects you.

When a nasal spray works better

If a blocked, congested nose is your main problem, a steroid nasal spray often beats tablets. The HSE notes sprays containing beclomethasone, fluticasone or mometasone. Our Beconase Hayfever Nasal Spray is one option. For best results, start it a week or two before your usual season and use it every day.

Which should you choose?

• Sneezing, itchy eyes, runny nose: a non-drowsy antihistamine tablet like cetirizine.
• Blocked or congested nose: a steroid nasal spray, on its own or with a tablet.
• Itchy eyes that will not settle: antihistamine eye drops can be added.

You can often combine a tablet and a nasal spray. If you are pregnant or breastfeeding, have another condition, or take other medicines, check with us first.

Simple things that help

The HSE also suggests practical steps: check the daily pollen forecast, wear wraparound sunglasses, shower and change your clothes after being outdoors, and keep windows shut when the count is high.

Ask your pharmacist

Not sure which to pick, or not getting relief? Message us or call in and we will match the right product to your symptoms.

Sources

• HSE. Hay fever. hse.ie
• HSE. Treatment for allergic rhinitis. hse.ie

General information, not a substitute for advice from your pharmacist or GP. Reviewed by the pharmacy team at Laois Pharmacy.

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Related reading: Hay Fever Season in Ireland: Best Antihistamines & Treatments for 2025