Chronic ear infections require a different treatment approach than the short-lived ear infections most people experience with a cold. Where an acute infection typically clears within days, a chronic ear infection involves persistent drainage, often through a hole in the eardrum, lasting anywhere from two to six weeks or longer. Treatment usually combines thorough cleaning by a specialist, targeted antibiotic or antifungal drops, and in some cases surgery to repair damaged structures and prevent the infection from returning.
What Makes an Ear Infection “Chronic”
A chronic ear infection is defined by an ongoing infection of the middle ear without an intact eardrum. The hallmark symptom is persistent or recurrent drainage from the ear, though some people have a “dry” chronic infection with hearing loss, ringing, or a feeling of fullness instead. The key distinction from acute infections is that the eardrum has a perforation, which means bacteria or fungi have a continuous path into the middle ear rather than being sealed behind an intact membrane.
This perforation is also what makes chronic infections harder to treat. Oral antibiotics that work well for acute infections have limited ability to reach the middle ear at high enough concentrations. And because the infection has been present for weeks or months, bacteria often form protective colonies on the surfaces of the middle ear that resist standard treatment. That’s why most chronic ear infections are managed with a combination of professional cleaning and topical medications delivered directly to the site.
Topical Antibiotic Drops as First-Line Treatment
The cornerstone of treating a bacterial chronic ear infection is antibiotic ear drops, specifically fluoroquinolone drops. These are preferred over older combination drops containing aminoglycosides (like neomycin) because fluoroquinolones are safe to use when the eardrum has a hole. Older drops carry a small risk of damaging the inner ear if they pass through a perforation.
A typical course lasts 7 to 14 days, with drops applied once or twice daily depending on the formulation. For the drops to work, they need to actually reach the infected tissue. If the ear canal is swollen nearly shut, your doctor may place a small compressed cellulose wick into the canal. The wick is inserted dry and then expanded with antibiotic drops, holding the medication against the canal wall. After 24 to 48 hours the wick is either replaced or removed, and you continue drops for another 7 to 10 days. Cotton balls should not be used as wicks because they can fall apart inside the ear and become difficult to remove.
Before starting drops, a specialist will typically suction out debris, dried drainage, and dead skin from the ear canal. This step matters enormously. Drops applied on top of thick buildup simply can’t penetrate to the infected tissue underneath. Regular cleaning visits, sometimes weekly, are part of the treatment plan for stubborn infections.
When the Infection Is Fungal
Not all chronic ear infections are bacterial. Fungal ear infections (otomycosis) can look similar but require completely different medication. They’re more common in humid climates, in people who’ve used prolonged courses of antibiotic drops, or in those with diabetes or weakened immune systems.
Treatment starts with mechanical debridement, where the doctor physically removes visible fungal material from the ear canal under magnification. This cleaning step is essential because antifungal drops alone are far less effective when fungal debris remains. The most commonly used topical antifungal is 1% clotrimazole, which works against both of the main fungal culprits. Over 70% of fungal ear infections resolve with this initial treatment, often in less than two weeks. Resistant cases may need up to eight weeks of topical therapy, and oral antifungal medication is reserved for severe infections that don’t respond to drops.
Ear Tubes for Recurring Infections
If infections keep coming back despite proper medical treatment, your doctor may recommend tympanostomy tubes, small hollow cylinders placed through the eardrum during a brief procedure. These tubes serve two purposes: they ventilate the middle ear space, which discourages bacterial growth, and they provide a channel for antibiotic drops to reach the middle ear directly without needing to pass through a perforation.
There are two basic categories. Short-term tubes, including designs like the Armstrong grommet and Shepard tube, stay in place for 8 to 15 months before the eardrum naturally pushes them out. Long-term tubes, such as the Goode T-tube, have flanges that resist extrusion and can remain for 15 months to two years. The choice depends on how severe and persistent your infections have been. Short-term tubes work well for most people, while long-term tubes are typically reserved for those with a history of repeated failures.
Surgery for Structural Damage
Chronic infection can cause structural damage that no amount of drops will fix. The two main surgical procedures are tympanoplasty (repairing the eardrum) and mastoidectomy (clearing infected bone behind the ear).
A mastoidectomy becomes necessary when infection has spread into the mastoid bone, when imaging shows bone erosion, or when a cholesteatoma has developed. Cholesteatoma is a growth of skin cells that becomes trapped in the middle ear, often as a consequence of long-standing infection or eardrum retraction. It appears as a white or yellowish mass, typically produces persistent foul-smelling drainage that doesn’t respond to antibiotics, and gradually destroys surrounding structures. Left in place, it can erode the tiny hearing bones, damage the balance organs, or in rare cases cause facial paralysis or serious intracranial complications like meningitis. The only treatment for cholesteatoma is surgical removal.
More aggressive “canal wall down” mastoidectomy procedures are reserved for persistent chronic infections or cholesteatomas that have recurred after a first surgery. Recovery from mastoidectomy typically involves several weeks of restricted activity, with follow-up visits to monitor healing and check for recurrence.
Keeping Water Out of the Ear
Any time you have a perforation in your eardrum, whether from the infection itself or from tube placement, water entering the ear canal can introduce new bacteria and restart the cycle. The CDC recommends using a bathing cap, ear plugs, or custom-fitted swim molds when swimming. The same precaution applies to showering and bathing. Custom-molded plugs made by an audiologist provide the most reliable seal, but over-the-counter silicone putty plugs work well for most people when fitted snugly.
Beyond water precautions, keeping the ear canal dry between drop applications helps prevent fungal overgrowth, which is one of the more common complications of prolonged antibiotic drop use. If you notice itching, white or dark debris, or a change in the character of your drainage during treatment, it’s worth having the ear checked for a secondary fungal infection.
Warning Signs of Complications
Most chronic ear infections respond to the combination of cleaning and topical therapy within a few weeks. Certain symptoms, however, signal that the infection may be causing deeper damage. Progressive hearing loss, especially if it’s getting noticeably worse, can mean the infection is eroding the tiny bones that conduct sound. Dizziness or vertigo suggests the infection may be reaching the inner ear balance structures. Any weakness in the muscles on one side of the face is a serious sign that the infection or a cholesteatoma is affecting the facial nerve, which runs through the middle ear. Persistent foul-smelling drainage that doesn’t improve with appropriate antibiotic drops is the classic red flag for cholesteatoma and warrants imaging and specialist evaluation.