What causes earwax build-up
Earwax (cerumen) is a natural, protective substance made by glands in the ear canal. It traps dust, debris and microorganisms before they reach the eardrum, keeps the skin of the canal lubricated, and has mild antibacterial properties. In most people, old wax gradually works its way out of the ear canal on its own, helped along by everyday jaw movement from talking and chewing. A build-up happens when wax is produced faster than it can clear, or when it gets pushed further into the canal rather than out of it.
Several things make build-up more likely. Some people naturally produce more wax than others, or have a narrower or more curved ear canal that makes it harder for wax to find its own way out. Wax also tends to become drier and harder to shift as people get older. Regularly wearing hearing aids, earplugs or in-ear earbuds can block the natural exit route and press wax back against the eardrum over time. And somewhat counterintuitively, cleaning the ears with cotton buds is one of the most common causes of build-up, since it tends to pack wax deeper into the canal rather than removing it.
Symptoms of earwax build-up
The symptoms of earwax build-up usually come on gradually, and often affect one ear more than the other. Common symptoms include:
- Hearing loss or muffled hearing in the affected ear
- A feeling that the ear is blocked, full or under pressure
- Earache or mild discomfort
- Tinnitus (ringing or buzzing in the ear)
- Itching in the ear canal
- Dizziness or a feeling of being slightly off-balance
Symptoms can become noticeably worse after water gets into the ear, for example while swimming or showering, since this makes dry wax swell and expand against the canal walls. Because these symptoms overlap with other ear conditions, including infection, it's worth getting a pharmacist or GP to confirm wax build-up is actually the cause before starting treatment, particularly if anything feels different from a simple blocked-ear sensation.
Treating earwax build-up safely at home
NHS guidance for a straightforward earwax build-up is to try softening the wax at home first. Lie on your side with the affected ear facing upward, put 2 to 3 drops of olive oil or almond oil into the ear, and stay in that position for a few minutes so the oil can soak in. Repeat this 3 to 4 times a day for 3 to 5 days. The wax often softens enough to work its own way out, sometimes falling out during sleep or while washing your hair, without needing anything further.
Never put cotton buds, fingers, hairpins or anything else into the ear canal to try to remove wax yourself. This almost always pushes the wax further in, compacts it harder against the eardrum, and risks scratching the delicate skin of the canal or damaging the eardrum itself. Ear candles and ear vacuum devices sold for home wax removal are also not recommended, since there's no good evidence they work and some carry their own safety concerns.
A couple of important cautions. Don't use oil drops if you have, or suspect you might have, a perforated eardrum, for example after a previous ear infection or injury; check with a pharmacist first if you're unsure. If you have a nut allergy, avoid almond oil drops specifically, plain olive oil is a reasonable alternative. If symptoms haven't improved after 5 days of drops, it's time to move on to the next step rather than continuing to self-treat indefinitely.
When a pharmacist can help
A pharmacist is often a good first port of call for a blocked, waxy-feeling ear. They can ask about your symptoms, confirm that build-up genuinely looks like the most likely explanation rather than an infection or something else, and point you toward a suitable over-the-counter softening treatment if plain oil hasn't been enough. It helps to be able to tell them how long the symptoms have been present, which ear is affected, whether you have any ear pain or discharge, and whether you wear a hearing aid or have had ear problems before.
If a course of drops doesn't clear things, a pharmacist can advise on what to do next, which is usually to contact your GP surgery rather than keep trying different home remedies. Not everyone with simple wax build-up needs to see a GP in person for this first step, which is part of why starting with a pharmacist can save time.
Ear irrigation and microsuction: what GPs and clinics offer
If drops haven't cleared the wax after 3 to 5 days, the next step is usually to contact your GP surgery. The older method, ear syringing, where wax was flushed out with a hand-held syringe, has largely fallen out of favour in UK general practice because of a small but real risk of damaging the eardrum. Most practices that still offer in-house removal now use electronic ear irrigation instead, which works on the same principle but uses a controlled, low-pressure water pump, or microsuction, where a clinician uses a fine suction device under direct vision, often with a microscope or headlight, to lift the wax out without any fluid at all. Both methods are usually quick and painless.
Access varies a good deal by area. Not every GP surgery provides wax removal in house any more, and some have moved to referring patients to a local community audiology service or, less commonly, an ENT (ear, nose and throat) clinic, which can mean a wait of several weeks depending on local demand. If the wait where you live is long and your symptoms are bothering you, private audiology clinics and some pharmacies offer microsuction as a paid, self-referral service, often with much shorter waiting times. It's worth asking your GP surgery's reception directly what they can offer before assuming you'll be seen quickly.
When to see a doctor
Most earwax build-up isn't a medical emergency and settles with home treatment or a simple in-practice procedure. However, see a GP promptly, rather than continuing to self-treat, if you have any of the following:
- Ear pain, or discharge or bleeding from the ear
- Sudden hearing loss, rather than the gradual change typical of build-up
- Dizziness or vertigo that doesn't settle
- A suspected foreign object stuck in the ear
These symptoms can point to an infection, a perforated eardrum or another problem that needs a different approach from simple wax softening. If you're treating a child, or you're not sure whether eardrops are appropriate for them, check with a pharmacist or GP first rather than assuming the same advice applies. Outside of these situations, straightforward build-up responds well to the step-by-step approach above: oil drops first, a pharmacist if that doesn't fully clear it, and GP-arranged irrigation or microsuction if home treatment still hasn't worked after about a week.