Hay fever treatment: what works and when to see a doctor

What is hay fever, and why does it happen?

Hay fever — known medically as allergic rhinitis — is an allergic reaction to airborne pollen. When pollen lands on the lining of your nose, eyes, throat, or sinuses, your immune system mistakenly identifies it as a threat and releases histamine. It is this histamine response that causes the familiar cascade of symptoms: sneezing, a runny or blocked nose, itchy and watering eyes, and that relentless, foggy tiredness that can feel like a mild cold that never quite goes away.

Tree pollen tends to trigger symptoms earliest in the year, from late February through April. Grass pollen — the most common culprit — peaks between May and July. Weed pollen can extend the season through to September. For people sensitive to more than one pollen type, that can mean six months of persistent symptoms every single year.

The most effective hay fever treatments

Treatment works best when it is started before the pollen season begins rather than in response to symptoms that have already taken hold. Here is what the evidence supports, in order of where most people should start.

Antihistamines

Non-drowsy, second-generation antihistamines — cetirizine, loratadine, and fexofenadine — are the first port of call for most people with mild to moderate hay fever. They are available over the counter and, when taken regularly rather than only on bad days, provide consistent relief from sneezing, itching, and runny nose. Older antihistamines such as chlorphenamine cause significant sedation and are not recommended for daytime use.

Nasal corticosteroid sprays

For anyone whose main symptom is nasal congestion, a corticosteroid nasal spray is likely to be more effective than an antihistamine alone. Sprays such as beclometasone and fluticasone reduce inflammation in the nasal passages directly. They take several days to reach full effect, which is why starting them a week or two before your pollen season is a worthwhile habit.

Used correctly — spraying towards the outer wall of the nostril rather than the nasal septum — these sprays are very safe for long-term use and carry minimal systemic absorption.

Eye drops

If itchy, streaming eyes are a significant part of your picture, antihistamine or sodium cromoglicate eye drops provide more targeted relief than oral medications alone. Wearing wraparound sunglasses outdoors and keeping windows closed during peak pollen hours (late morning and early evening) can also reduce ocular exposure considerably.

Combination approaches

Many people with moderate to severe hay fever will find the best results from combining an antihistamine, a nasal spray, and eye drops rather than relying on any single treatment. It can take a season or two of experimentation to find the combination that works best for you.

When over-the-counter options are not enough

There is a significant minority of hay fever sufferers for whom pharmacy treatments simply do not provide adequate control. If you find yourself taking antihistamines daily throughout the season with limited benefit, missing work or sleep regularly because of your symptoms, or developing complications such as sinusitis or worsening asthma, it is worth speaking to a doctor.

A GP appointment is also warranted if you are unsure whether you actually have hay fever — perennial allergic rhinitis (caused by dust mites, pet dander, or mould rather than pollen) can present similarly and requires a different approach. Our same-day GP service is available for exactly this kind of assessment, without a long wait.

Prescription options

For people whose symptoms are not adequately controlled by standard treatments, a GP can prescribe stronger formulations, combination nasal sprays containing both antihistamine and corticosteroid, or short courses of oral corticosteroids for particularly severe periods. In some cases, a referral for allergy testing is appropriate to confirm the specific trigger and inform a longer-term management plan.

Immunotherapy

For those with confirmed grass or tree pollen allergy who have not responded well to medication, allergen immunotherapy — also known as desensitisation — is worth considering. This involves gradually introducing increasing doses of the allergen, either as injections or sublingual tablets or drops, over a period of months. Evidence shows it can significantly reduce the severity of symptoms and, in some cases, produce lasting tolerance. It is not a quick fix, but for people whose hay fever significantly affects their quality of life year after year, it can be genuinely transformative.

Hay fever and health screening

Persistent hay fever can have knock-on effects that are easy to underestimate. Disrupted sleep, chronic fatigue, and impaired concentration all accumulate over a season. For people with asthma, uncontrolled hay fever can trigger more frequent and severe attacks. If you have other health concerns alongside your hay fever — or simply have not had a general health review in some time — our health screening service provides a thorough overview of your overall health picture.

Practical measures that make a real difference

Alongside treatment, a few practical habits can meaningfully reduce your pollen exposure:

• Check the pollen forecast. On high-pollen days, plan outdoor activity for early morning or after rain when counts are lower.
• Change clothes and shower after being outside. Pollen clings to hair and clothing and continues to cause symptoms indoors if you do not wash it off.
• Keep car and home windows closed during peak pollen hours, using air conditioning where available.
• Apply a small amount of petroleum jelly around the nostrils to trap pollen before it enters the nasal passage — a simple measure that is surprisingly effective.
• Avoid drying laundry outdoors during the pollen season, as bedding and clothes will collect significant amounts of pollen.

A note on hay fever in children

Hay fever is common in children and often goes unrecognised — particularly when it presents primarily as fatigue, poor concentration, or disrupted sleep rather than the more obvious sneezing and runny nose. If a child's symptoms appear to worsen consistently during spring and summer, an allergy assessment is worth pursuing. Left unmanaged, hay fever can affect school performance and wellbeing in ways that are entirely preventable.

Getting the right help

Most people can manage mild hay fever independently with the right combination of treatments. But if your symptoms are taking a toll on your daily life — your work, your sleep, or your enjoyment of the seasons — please do not simply put up with it. Effective solutions exist, and a short GP consultation can often make an enormous difference. We are here when you need us.

Related reading

• Same-Day GP Appointments — speak with one of our GPs about your hay fever management, allergy concerns, or any other health question.
• Health Screening at AtWell — a comprehensive health review to ensure nothing else is contributing to your fatigue or wellbeing.