How Long Does an Ear Infection Last in Adults?

Most ear infections in adults clear up within one to two weeks, though the exact timeline depends on which part of the ear is affected and whether you need treatment. About 80% of middle ear infections resolve on their own without antibiotics. Other types, like inner ear infections, can take considerably longer.

Middle Ear Infections: 1 to 2 Weeks

A middle ear infection (the type most people mean when they say “ear infection”) causes pain, pressure, and sometimes muffled hearing. In adults, the acute phase typically lasts one to two weeks regardless of whether antibiotics are used. Antibiotics can relieve symptoms faster in the first few days, but outcomes at the two-week mark are similar either way.

Because of this, many providers take a “watch and wait” approach for the first 48 to 72 hours. If symptoms haven’t improved in that window, antibiotics are usually started. If you’re already on antibiotics and see no improvement after 48 to 72 hours, that’s a sign the infection may be resistant to the initial medication and your provider will likely switch to a different one.

One thing that catches people off guard is the fluid that lingers after the infection itself is gone. Even after pain and fever resolve, trapped fluid behind the eardrum can keep your hearing slightly muffled for weeks. In most cases this fluid drains on its own within about 12 weeks. It doesn’t mean you’re still infected, just that the ear is still recovering.

Outer Ear Infections: 7 to 10 Days

Outer ear infections, commonly called swimmer’s ear, affect the ear canal rather than the space behind the eardrum. The hallmark symptom is pain that gets worse when you tug on your earlobe or press on the small flap at the front of the ear. The canal often feels swollen, itchy, and may drain fluid.

With prescription eardrops, swimmer’s ear usually clears up within 7 to 10 days. Keeping the ear dry during treatment is essential. Water trapped in the canal is often what caused the infection in the first place, and continued moisture slows healing. Cotton balls lightly coated with petroleum jelly can help keep water out during showers.

Inner Ear Infections: Up to 6 Weeks

Inner ear infections are less common but more disruptive. The hallmark symptom isn’t ear pain but vertigo, the spinning sensation that makes it hard to stand, walk, or focus your eyes. You may also notice ringing in the ear or sudden hearing loss on one side. This type of infection inflames the structures deep in the ear that control balance and hearing.

Recovery can take up to six weeks, which sounds daunting. The good news is that many people feel significantly better after one to two weeks. The severe vertigo usually fades first, while milder dizziness and balance issues taper off more gradually. During recovery, your brain is actively recalibrating how it processes balance signals, so improvement tends to be steady rather than sudden.

When an Infection Becomes Chronic

An ear infection is considered chronic when drainage through a perforated eardrum persists for two to six weeks or longer. Chronic infections don’t always cause sharp pain the way acute ones do. Instead, you may notice ongoing drainage, a persistent feeling of fullness, and gradual hearing loss. These infections typically need more targeted treatment and closer monitoring than a standard acute infection.

Recurrent infections are a separate concern. A single ear infection that takes its normal course and resolves isn’t worrisome. But if you’re getting three or more infections in a relatively short period, it may point to an underlying issue like a eustachian tube that doesn’t drain properly. At that point, a specialist can evaluate whether a procedure like ear tubes would help break the cycle.

What Affects How Quickly You Recover

Several factors influence whether your infection lands on the shorter or longer end of the timeline. Infections triggered by a cold or upper respiratory virus tend to follow the virus’s own course, meaning ear symptoms may not fully resolve until the congestion clears. Smoking and secondhand smoke exposure slow healing by irritating the tissues that line the ear and eustachian tube. Allergies can keep the eustachian tube swollen and make it harder for fluid to drain, extending recovery.

Flying or changing altitude while you have an active middle ear infection can worsen pain and delay healing because the pressure changes stress an already inflamed eardrum. If you can reschedule air travel until symptoms resolve, your ears will thank you.

Signs Your Infection Needs Attention

Most ear infections are straightforward and handled by a primary care provider. But certain symptoms suggest something more serious is happening. High fever that develops after the first couple of days of an infection (rather than at the onset) can signal a spreading infection. Sudden significant hearing loss, severe dizziness, swelling or redness behind the ear, and facial weakness on the affected side all warrant prompt evaluation.

If you’ve completed a course of antibiotics and symptoms return within a few weeks, or if infections keep recurring, an ear, nose, and throat specialist can look more closely at the structure and function of your ear to figure out what’s driving the pattern.