The most reliable signs of an ear infection are pain or pressure inside the ear, muffled hearing, and sometimes fluid draining from the ear canal. Most ear infections clear up within one to two weeks, but the symptoms and severity vary depending on which part of the ear is affected and whether the person is an adult, child, or infant.
Symptoms in Adults
Adult ear infections tend to produce a narrower set of symptoms than childhood ones. The hallmarks are ear pain or a feeling of pressure deep inside the ear, trouble hearing clearly, and occasionally fluid leaking from the ear (which can signal a torn eardrum). You might also notice a low-grade fever, headache, or a sense that the ear feels “full,” like it needs to pop but won’t.
Because the symptoms overlap with other conditions like allergies, sinus pressure, or even jaw problems, it helps to pay attention to the pattern. Ear infection pain is typically steady or throbbing and gets worse when you lie down. It often shows up during or just after a cold, since the infection can travel up the tube connecting your throat to your middle ear.
Symptoms in Children and Infants
Children get ear infections far more often than adults because the drainage tubes in their ears are shorter and more horizontal, making it easier for fluid and bacteria to get trapped. Kids old enough to talk will usually tell you their ear hurts, but younger children and babies can’t, so you have to read their behavior.
According to Johns Hopkins Medicine, the key signs in babies and toddlers include tugging or pulling at one ear, unusual crying and irritability, difficulty sleeping, fever (especially in younger children), fluid draining from the ear, loss of balance, and not responding normally to sounds. A child who suddenly refuses to eat may also have an ear infection, since swallowing and chewing changes pressure in the middle ear and can make the pain worse.
Middle Ear vs. Outer Ear Infections
The two most common types are middle ear infections and outer ear infections, and they feel noticeably different.
A middle ear infection (sometimes called otitis media) causes deep, internal pain and pressure. It’s the type that typically follows a cold or upper respiratory infection. You may have muffled hearing, fever, and fluid behind the eardrum. This is the classic “ear infection” most people think of, and it’s the type children get most frequently.
An outer ear infection, often called swimmer’s ear, affects the ear canal itself. The telltale difference is that the pain gets significantly worse when you tug on your earlobe or press on the small flap at the front of your ear. The outer ear may look red, feel warm, or appear swollen, and you might notice itching before the pain sets in. It’s commonly caused by water sitting in the ear canal after swimming or bathing, which creates a breeding ground for bacteria.
Inner Ear Infections and Dizziness
Less common but more disorienting, inner ear infections affect the structures responsible for balance. The hallmark symptom is vertigo: a sudden, persistent sensation that the room is spinning. This is usually accompanied by nausea, vomiting, and difficulty walking steadily. The symptoms are constant rather than coming and going, though head movement makes them worse.
If the dizziness comes with hearing loss in one ear, that points toward a condition called labyrinthitis rather than a simpler inflammation of the balance nerve alone. Either way, sudden vertigo with nausea is worth getting evaluated promptly, since these symptoms can also mimic stroke or other neurological problems.
Fluid Buildup Without Infection
Not every problem behind the eardrum is an active infection. A condition called otitis media with effusion happens when fluid collects in the middle ear without bacteria or viruses causing an infection. The CDC notes that this type does not cause fever, ear pain, or pus buildup. What you will notice is muffled hearing or a plugged feeling in the ear, especially after a cold has already resolved. It’s common in children and usually clears on its own, but persistent fluid can temporarily affect hearing and, in young kids, speech development.
The distinction matters because fluid without infection doesn’t need antibiotics. A doctor can tell the difference by looking at the eardrum. An infected eardrum appears red, bulging, and opaque, while an eardrum with fluid behind it may look dull or amber-colored but won’t be bulging outward.
What a Doctor Actually Checks
There’s no blood test or scan for a standard ear infection. The diagnosis comes from looking at the eardrum with a handheld scope. A healthy eardrum is translucent, pearly gray, and moves freely when a small puff of air is blown against it. An infected eardrum looks red and swollen, bulges outward, and barely moves when air pressure is applied. That combination of bulging plus redness is the key finding that distinguishes an active infection from simple fluid.
Consumer digital otoscopes are now sold online, often marketed for earwax removal. A pilot study published in Otology & Neurotology Open found that inexpensive digital endoscopes produced images that closely matched clinical diagnoses when used by trained individuals. But the researchers noted a significant caveat: the images were captured by people with anatomical training, and it’s unclear whether untrained users could get images clear enough to be useful. These devices are also not FDA-approved for medical diagnosis. They can give you a general look inside, but interpreting what you see without training is unreliable.
How Long Symptoms Typically Last
Most ear infections improve noticeably within a couple of days, and the majority resolve within one to two weeks without any treatment. When antibiotics are prescribed, pain usually starts easing within 48 to 72 hours. If pain is getting worse after two or three days, or if symptoms haven’t improved at all after a week, that’s a signal to follow up with a provider.
Over-the-counter pain relievers and a warm cloth held against the ear are the standard comfort measures while waiting for an infection to clear. For children, sleeping with the affected ear facing up can reduce pressure and pain.
Signs That Need Urgent Attention
Most ear infections are uncomfortable but not dangerous. A few warning signs, however, call for immediate medical evaluation. The most important is redness, swelling, tenderness, or warmth in the bone behind the ear, sometimes with the ear being pushed forward. This pattern suggests mastoiditis, a bacterial infection that has spread from the middle ear into the skull bone. It requires emergency treatment.
Other red flags include a high fever that doesn’t respond to medication, sudden significant hearing loss, severe headache or stiff neck alongside ear symptoms, facial drooping or weakness, and any change in alertness or confusion. In children, watch for a fever above 102°F (39°C) paired with ear symptoms, or pus or bloody fluid draining from the ear. These scenarios are uncommon, but they’re the ones where waiting it out is not the right call.