You can’t definitively diagnose an ear infection at home because the eardrum sits too deep in the ear canal to see without specialized tools. But ear infections produce a reliable pattern of symptoms you can check for, and knowing what to look for helps you decide whether you or your child needs medical attention now or can safely wait.
Key Symptoms in Adults
The most telling sign of a middle ear infection is a deep, persistent ache or pressure inside the ear, not on the outer surface. This pain often gets worse when lying down because the position changes fluid pressure behind the eardrum. Adults typically notice three things: ear pain or pressure, muffled hearing on the affected side, and sometimes fluid draining from the ear canal. Drainage usually means the eardrum has ruptured from pressure buildup, which sounds alarming but often brings immediate pain relief.
If your symptoms started during or just after a cold, sinus infection, or allergies, that raises the odds significantly. Middle ear infections develop when swelling blocks the narrow tube connecting your middle ear to your throat, trapping fluid that then becomes infected.
What to Watch for in Children
Children get ear infections far more often than adults, and younger kids can’t always tell you what hurts. The behavioral signs to look for include tugging or pulling at one ear, unusual fussiness or crying (especially at night), trouble sleeping, loss of appetite, and not responding normally to sounds. Fever often accompanies an ear infection in children, though not always.
In babies and toddlers, feeding time can be especially revealing. Sucking and swallowing create pressure changes in the middle ear, so an infant with an ear infection may start feeding eagerly, then pull away crying. If your baby seems irritable specifically during meals and is also sleeping poorly, an ear infection is a strong possibility.
A Simple At-Home Hearing Check
Fluid trapped behind the eardrum muffles sound, so a basic hearing test can help you spot the difference between ears. You can do a version of what clinicians call the whisper test. Stand about two feet behind the person being tested. Have them cover one ear by pressing a finger over the small flap of cartilage at the ear opening (the tragus) and gently moving it in a small circle to block sound. Then whisper a simple combination of numbers and letters, like “4-K-2,” and ask them to repeat it back.
Test each ear separately. If one side consistently struggles to hear whispered combinations while the other catches them easily, that suggests hearing is reduced on the affected side. This isn’t a diagnosis on its own, but combined with pain or pressure, it adds useful information. For very young children who can’t do this test, pay attention to whether they seem to favor turning one side of their head toward sounds or aren’t reacting to quiet noises the way they normally would.
Outer Ear Infection vs. Middle Ear Infection
Not all ear infections happen behind the eardrum. Outer ear infections (commonly called swimmer’s ear) affect the ear canal itself, and these are actually easier to spot at home. Look for redness and swelling of the outer ear, itchiness inside the canal, and fluid draining out. The signature test: gently tug the earlobe or press on the small flap at the ear opening. If that causes sharp pain, an outer ear infection is likely. Middle ear infections don’t usually hurt with external pressure or pulling.
Outer ear infections are common after swimming, showering frequently, or using earbuds or hearing aids that trap moisture. The ear canal may look visibly red or swollen compared to the other side.
The Tragus Press Test
For babies who can’t tell you where it hurts, gently pressing on the tragus (the small pointed flap covering the ear canal opening) can sometimes help. If a baby flinches, cries, or pulls away when you press gently on one ear but not the other, it suggests pain on that side. This test is more reliable for outer ear infections than middle ear infections, and it’s not foolproof, but it gives you one more data point alongside behavioral changes.
Symptoms That Need Prompt Attention
Most ear infections, particularly in children over age two with mild symptoms, can be monitored for 48 to 72 hours before deciding on treatment. Clinical guidelines support this “watchful waiting” approach when the pain is manageable and fever is low or absent. Many ear infections clear on their own.
However, certain signs warrant faster action. Swelling, redness, or a soft, doughy feeling in the bone behind the ear can indicate mastoiditis, a serious infection that has spread from the middle ear into the skull bone. This is rare but requires immediate medical care. On darker skin tones, the discoloration behind the ear may look purplish rather than red. Any weakness or drooping on one side of the face alongside ear symptoms is also an emergency, as it can signal the infection is affecting nearby nerves.
For children, call your doctor if symptoms haven’t improved within two to three days, if a high fever develops, if you see pus or bloody fluid draining from the ear, or if your child seems unusually lethargic. For ear pain in a baby under six months, it’s worth getting checked sooner rather than waiting.
What Home Checks Can and Can’t Tell You
By combining symptom observation, the whisper test, and physical checks like the tragus press, you can build a reasonably clear picture of whether an ear infection is likely. What you can’t do at home is see behind the eardrum, which is how doctors confirm the diagnosis. They use a device called an otoscope to check for fluid, redness, and bulging of the eardrum. Some parents purchase home otoscopes with smartphone attachments, but interpreting what you see requires training, and a normal-looking eardrum can be hard to distinguish from a mildly inflamed one without experience.
The most practical approach is to track the specific symptoms: which ear, how long, whether there’s fever, any drainage, and how hearing compares between ears. This information helps you decide whether to wait or call, and gives a doctor everything they need if you do seek care.