Sneezing, streaming nose, itchy eyes, feeling rubbish. Is it a cold or hay fever? In the UK, where one minute it’s pollen season and the next everyone’s got a bug, the difference between a cold and hay fever genuinely confuses people — and it matters, because they need completely different treatments. Antihistamines won’t fix a cold, and decongestants won’t fix an allergy.
Here’s the simplest distinction: a cold is caused by a virus; hay fever is an allergic reaction to pollen (or other airborne allergens). They share symptoms but differ in timing, pattern and a few tell-tale signs. Let’s break it down.
The difference between a cold and hay fever: key signs
| Symptom / feature | Cold | Hay fever |
|---|---|---|
| Onset | Gradual over 1–2 days | Sudden, often within minutes of exposure |
| Itchy eyes, nose, throat | Rare | Very common — the hallmark sign |
| Sneezing | Occasional | Frequent, in fits |
| Mucus | Thick, yellow/green | Thin, clear and watery |
| Fever / aches | Common (low-grade fever, body aches) | Never — allergies don’t cause fever |
| Sore throat | Common, often first symptom | Scratchy/itchy rather than sore |
| Duration | 7–10 days, then gone | Weeks to months, while pollen is high |
| Time of year | Anytime, peaks in winter | Spring/summer, tied to pollen counts |
The fastest home test: do your eyes itch? Itchy, watery eyes point strongly to hay fever. Fever and body aches point strongly to a cold. If you’re sneezing in fits on a high-pollen day with clear runny mucus and itchy eyes — that’s hay fever, even if it “feels like a cold”.
Treating each one properly
If it’s a cold
Rest, fluids, paracetamol or ibuprofen for aches and fever. Decongestants (pseudoephedrine) help short-term; don’t use nasal decongestant sprays for more than a few days or rebound congestion strikes. Antibiotics do nothing — it’s viral. Most colds resolve in 7–10 days. And while you’re recovering, supporting your immune system with sleep and decent food speeds things along.
If it’s hay fever
- Antihistamines — cetirizine or loratadine (non-drowsy, ~£2–£4 for a month’s supply). Take daily through the season, not just on bad days.
- Steroid nasal sprays (fluticasone/beclometasone) — the most effective hay fever treatment for nasal symptoms, but they take a few days to kick in, so start before the season peaks.
- Eye drops — sodium cromoglicate drops for itchy eyes.
- Practical measures — keep windows closed on high-pollen mornings, shower and change clothes after being outside, dry laundry indoors, wear wraparound sunglasses, and check the Met Office pollen forecast.
Keep antihistamines in your home first aid kit year-round — hay fever season now stretches from March to September in the UK, and tree pollen starts earlier than most people expect. The NHS hay fever page has the full treatment ladder, and Allergy UK is excellent for identifying your specific triggers.
The tricky cases
- “I get a cold every spring.” You probably get hay fever every spring. Recurring “colds” at the same time each year, lasting weeks, with itchy eyes = allergy until proven otherwise.
- Both at once. Entirely possible — a cold on top of hay fever. Treat both: antihistamines plus cold remedies.
- Symptoms all year. Perennial allergic rhinitis — usually dust mites or pets rather than pollen. Same treatments, different trigger. An allergy test (GP referral or private, £100–£250) identifies the culprit.
- Sinus pain and pressure. Can accompany either, but severe facial pain with thick coloured discharge and fever suggests sinusitis — see a pharmacist or GP.
The hay fever treatment ladder: from simple to serious
Once you’ve identified hay fever (itchy eyes and nose, sneezing fits, no fever), work up this ladder until symptoms are controlled. Most people stop at rung two.
Rung 1 — avoidance and barriers (£0–£10). Check the pollen forecast (Met Office, free) and plan outdoor time for low-count periods. Shower and change clothes after being outside — pollen rides home in your hair. Vaseline around the nostrils traps pollen before it enters. Sunglasses (wraparound ideally) shield eyes. Keep windows closed at peak times; dry laundry indoors when counts are high.
Rung 2 — over-the-counter medication (£5–£12). Non-drowsy antihistamines (cetirizine, loratadine) daily through the season — start before symptoms peak, as they work better preventatively. Steroid nasal sprays (fluticasone, mometasone) are actually the most effective single treatment for nasal symptoms but take a few days to kick in — many people underuse them. Antihistamine eye drops for the eye symptoms tablets don’t fully cover. Buy generic; the active ingredients are identical to branded at a third of the price.
Rung 3 — GP territory. If OTC treatment isn’t controlling symptoms, your GP can prescribe stronger nasal sprays, combination treatments, or short courses of stronger medication. Don’t suffer through a summer of ineffective tablets — there’s almost always a next step.
Rung 4 — immunotherapy. For severe, persistent hay fever that ruins summers despite treatment, desensitisation (tablets or injections over 3 years) can fundamentally retrain the immune response. It’s a commitment, but for the worst-affected it’s transformative — ask for an allergy referral.
For colds, by contrast, the ladder is much shorter: rest, fluids, paracetamol/ibuprofen for symptoms, decongestants for a few days max (longer causes rebound congestion), and patience. Antibiotics don’t touch viruses — save the GP trip for the red-flag symptoms in the main guide.
Cold vs hay fever: quick answers
Can you have both at once? Unfortunately yes — spring colds overlap with early pollen season. If you have itchy eyes and a feverish, achy cold, treat both: antihistamines for the allergy symptoms, rest and fluids for the cold.
Why do my “colds” always come in May? They might not be colds. Recurring sneezing, itchy eyes and clear runny nose at the same time each year is textbook hay fever. Try two weeks of daily antihistamines next May — if it works, you’ve got your answer.
Do hay fever symptoms get worse with age? Often the opposite — many people find hay fever eases from their 40s onward as immune responses calm. But it can also appear for the first time in adulthood, so “I’ve never had it before” doesn’t rule it out.
Can children get hay fever? Yes, usually from age 3–4 onward. Children’s antihistamines (liquid cetirizine/loratadine) are available over the counter — check the age guidance and dosing with the pharmacist. If symptoms are severe, the GP can do more.
Your takeaway: itch means allergy, fever means cold
The difference between a cold and hay fever comes down to pattern: itchy eyes and sudden sneezing fits on high-pollen days = hay fever (treat with antihistamines and nasal steroids); gradual onset with fever, aches and thick mucus lasting a week = cold (rest, fluids, painkillers). Get the diagnosis right and the treatment actually works.
