Asthma and Hay Fever: Managing Seasonal Triggers

Why Pollen Matters When You Have Asthma

If you have asthma, you may already know that hay fever season can feel like more than just sneezing and itchy eyes. Pollen is a fine powder released by trees, grasses and weeds, and for many people it acts as a trigger that inflames the airways. When that happens, the tubes carrying air in and out of your lungs become swollen and narrowed, and you may notice more coughing, wheezing, chest tightness or shortness of breath than usual.

Roughly one in four people in the UK with asthma also has hay fever, and the two conditions tend to feed into each other. The good news is that seasonal triggers are fairly predictable. By planning a little ahead rather than simply reacting when symptoms flare, you can often keep your asthma steadier through spring and summer.

Know Your Own Pollen Season

The UK pollen calendar is longer than many people realise. Different plants release pollen at different times, so identifying your likely triggers helps you to prepare.

• Tree pollen is usually the earliest, running from late March through much of May. Birch, oak, ash and hazel are common culprits.
• Grass pollen dominates from mid-May to July, and it affects the largest number of people with hay fever in the UK.
• Weed pollen, including nettle and mugwort, can extend the season into September.
• Fungal spores also peak in warm, damp conditions and can act as an asthma trigger in their own right.

If you are not sure what affects you, a symptom diary can help. Note down your symptoms alongside the weather and the time of year, and patterns often become clear within a few weeks.

Check the Forecast Before You Go Out

Pollen forecasts are widely available and are a genuinely useful tool. The Met Office provides a regional pollen count, and many weather apps include one alongside the temperature and rain. Checking it as part of your morning routine takes seconds.

Pollen counts tend to be highest on warm, dry, breezy days, and often peak in the early morning and again in the late afternoon or early evening. Rain usually washes pollen out of the air, so a damp day can feel easier. On high-count days, consider shifting a run, a dog walk or gardening to a lower-risk time, or moving the activity indoors.

Wind direction matters too. If a breeze is blowing across fields or parkland towards your home, keep windows shut during the day and ventilate in the early morning or after rain instead.

Practical Steps After Time Outdoors

Small habits make a real difference, especially in the hour or two after you have been outside.

• Shower and change when you come in from a high-pollen outing. Pollen collects on hair, skin and clothing, and can otherwise travel into your bedding.
• Do not dry laundry outside during your peak season, as sheets and towels act like a pollen trap.
• Wipe pets with a damp cloth when they come in from the garden, and keep them out of bedrooms if possible.
• Rinse your face or use a saline nasal rinse to clear pollen from your nose and eyes.
• Wear wraparound sunglasses outdoors to reduce the amount reaching your eyes.
• Keep car windows closed and use the air conditioning, changing or cleaning the filter as recommended.

Indoors, vacuuming regularly with a machine that has a good filter, and damp-dusting rather than dry-dusting, will stop pollen settling into soft furnishings.

Keep Your Asthma Treatment Working as Advised

The single most important thing you can do is to use your medicines exactly as your GP, nurse or pharmacist has advised. Many people with asthma and hay fever find their symptoms worsen simply because their regular preventer inhaler has been used inconsistently.

Preventer inhalers work over time to reduce the inflammation in your airways. They do not give immediate relief, which is why it is tempting to skip them when you feel well. Taking yours every day, as prescribed, gives you a much better buffer when pollen arrives. If your hay fever is troublesome, speak to your pharmacist or GP about an antihistamine or a nasal steroid spray that is suitable for you, and start it before your season begins rather than waiting for symptoms to build.

Keep your reliever inhaler with you at all times, and make sure you are using a good technique. If you have not had your inhaler technique checked recently, ask at your next review. A spacer can help if you use a metered-dose inhaler.

Have a Written Plan and Know When to Get Help

An up-to-date personal asthma action plan is your roadmap. It should tell you what to do when you are well, what to do if symptoms start to worsen, and exactly when to seek urgent help. If you do not have one, ask your GP surgery or asthma nurse for one.

Speak to your healthcare team if you are needing your reliever inhaler more than three times a week, if symptoms are waking you at night, or if you have needed a course of steroid tablets in the past year. These are signs that your asthma is not as well controlled as it could be, and a simple treatment review often makes a big difference.

Call 999 if you are too breathless to speak in full sentences, if your reliever inhaler is not helping, or if you feel exhausted or frightened by your breathing. Never put off getting help.

With a little forward planning, the right treatments used consistently and a few simple habits, hay fever season does not have to mean months of struggling. Be kind to yourself, prepare early, and keep your asthma team in the loop.