Swimmer’s ear (otitis externa) is an infection of the outer ear canal and is usually treated with prescription ear drops. A middle ear infection (otitis media) sits behind the eardrum and is often managed with watchful waiting or oral antibiotics, unless ear tubes are in place. When standard drops are not a good fit, an ENT may prescribe custom ear drops from a compounding pharmacy. Always see a doctor before using any ear drops.
It is 9 p.m. After a week of summer swim practice, your 8-year-old is crying because their ear hurts, especially when you touch it. Before you reach for old drops or read up on custom ear drops, it helps to know which part of the ear is in trouble.
Last winter, their older sister had an ear infection that needed oral antibiotics. Is the infection the same thing? Probably not. Swimmer’s ear and middle ear infections sit on opposite sides of the eardrum and are usually treated very differently. That half-used bottle of drops in the cabinet may not be safe, either, especially if there is a hole in the eardrum or an ear tube.
This guide covers what each infection is, how doctors typically treat them, where compounded medications fit in, and when to call the doctor. It is meant to help you have a better conversation with your doctor, not replace that visit.
Swimmer’s Ear vs. Middle Ear Infection: Where the Problem Lives
Quick take: Swimmer’s ear is an infection of the outer ear canal. A middle ear infection sits behind the eardrum. Location drives almost everything about treatment.
Swimmer’s ear affects the skin of the ear canal, where moisture and tiny scrapes give bacteria a foothold. A middle ear infection happens in the air-filled space behind the eardrum. According to Mayo Clinic, it often follows a cold, flu, or allergies that block the Eustachian tubes. In young children, those tubes are narrower and more level, so they clog more easily.
Swimmer’s ear (otitis externa) at a glance
- Where: the outer ear canal, in front of the eardrum
- Triggers: swimming, humid weather, aggressive ear cleaning, and hearing aids, per a summary of the AAO-HNS Foundation guideline
- Signs: pain when the outer ear is tugged, itching, redness, and drainage, according to the CDC
Middle ear infection (otitis media) at a glance
- Where: the middle ear space, behind the eardrum
- Cause: bacteria or viruses, usually after a cold
- Signs in kids: ear pain, ear tugging, fussiness, poor sleep, fever, trouble hearing
- Signs in adults: ear pain or pressure, fluid from the ear, muffled hearing
These clues overlap, and only a clinician looking at the eardrum can tell the two apart. Treat these symptoms as background, not a self-check.
How Doctors Usually Treat Each One
Quick take: Uncomplicated swimmer’s ear is usually treated first with prescription ear drops, not oral antibiotics. Middle ear infections in children are often watched closely first or treated with oral antibiotics.
Swimmer’s ear: topical drops first
The AAO-HNS Foundation guideline on acute otitis externa, summarized by the AAFP, names topical drops as first-line treatment for uncomplicated cases. Oral antibiotics are generally saved for infections that spread beyond the canal or for specific risk factors. The guideline found no meaningful outcome difference among the main classes of drops, so cost, side effects, and patient preference can guide the choice. That flexibility is one reason to consider custom ear drops.
If symptoms do not improve within 48 to 72 hours, the guideline calls for a recheck. Technique matters too. Only about 40% of people who give themselves drops do it correctly in the first three days, so a helper is preferred when possible.
Middle ear infection: watchful waiting or oral antibiotics
For some children, pediatric guidance from the American Academy of Pediatrics (AAP) allows watchful waiting: close observation, sometimes with a backup prescription, instead of immediate antibiotics. A study of more than 140,000 pediatric visits, reported by CIDRAP, found that 6% of children managed this way needed an antibiotic 3 to 30 days later, compared with 7% treated right away.
Your child’s doctor decides based on age, severity, and history. Watchful waiting is a medical plan, not a reason to skip an antibiotic your doctor recommends.
The ear tube exception
The AAO-HNS Foundation’s guideline on ear tubes in children recommends treating uncomplicated tube infections with topical antibiotic ear drops only, not oral antibiotics, because drops work better with fewer side effects.
What to ask your doctor:
- Which infection is it, and is the eardrum intact?
- Is this drop safe with ear tubes?
- Who is responsible for administering the drops, and when should we schedule a follow-up?
“Only about 4 in 10 people put ear drops in correctly on their own. A helper makes a real difference.”
Why Ear Drop Safety Matters With Tubes or a Perforated Eardrum
Quick take: If the eardrum has a hole or a tube, drops can reach the middle ear. ENTs then choose preparations that are not ototoxic, meaning not harmful to hearing or balance structures.
An intact eardrum acts as a wall. A perforation or tube creates an opening, so whatever goes into the canal can travel deeper. The acute otitis externa guideline calls for a non-ototoxic preparation in these cases, and the CDC advises against over-the-counter ear-drying drops for anyone with tubes, a punctured eardrum, active swimmer’s ear, or drainage.
- Never use leftover drops or someone else’s prescription.
- Tell every prescriber and pharmacist about tubes or a past perforation.
- Ask whether the drop’s base and preservatives suit an ear that is not sealed.
- Report dizziness, ringing, or hearing changes promptly.
When ENTs Prescribe Custom Ear Drops
Quick take: Custom ear drops are compounded medications an ENT prescribes when no commercial product offers the needed combination, strength, base, or form.
A compounding pharmacy prepares a medication for one patient from a prescriber’s order. Compounded medications are not FDA-approved, meaning the FDA does not review them for safety, effectiveness, or quality before they are dispensed. They require a valid prescription and are not meant to replace an FDA-approved product that works for you. Standards like USP 795 and 797 guide safe compounding; learn more about our ENT compounding services.
An ENT may consider custom ear drops for:
- Combinations, such as an antibacterial with a steroid or antifungal, in one drop
- Preservative-free formulations for sensitive canals
- Allergy-friendly bases without specific dyes or fillers
- Insufflation powders some ENTs use for chronically draining ears
- Antifungal preparations for fungal infections
- Dropper formats that make easier doses for kids possible
Otomycosis: when the infection is fungal
Otomycosis is a fungal infection of the ear canal, most often caused by Aspergillus or Candida, according to a review in Cureus. It can cause itching, pain, fullness, and discharge, and it tends to recur. Risk factors include moisture, swimming, steroid use, and prior bacterial infection. Treatment usually pairs careful cleaning by a clinician with a topical antifungal, though much of the evidence comes from small studies.
Bring to your ENT visit your allergy list, past drops that failed or irritated, any tube or perforation history, and your child’s tolerance for drops.
“The goal of custom ear drops is simple: the right medicine, in a form your ear can tolerate.”
How a Compounding Pharmacy Fills Custom Ear Drops
Quick take: Your ENT sends a prescription, a compounding pharmacist prepares it, and you get guidance on storing and giving the drops.
At King’s Pharmacy and Compounding Center in Irvine, our pharmacists can work with your ENT on prescriptions that call for a custom formulation. We are a compounding pharmacy serving Orange County and are licensed in several states beyond California; contact the pharmacy to confirm yours. See how we work with prescribers.
- Prescription: your ENT sends the order to the pharmacy.
- Consultation: a pharmacist may contact your prescriber about the base or ingredients.
- Counseling: ask about storage, the beyond-use date, and how to give the drops.
- Refills: when allowed, request a refill online.
- Cost: coverage for compounded medications varies, so check with your insurance first. King’s is contracted with nearly all insurance plans, but coverage is never guaranteed.
Prevention Tips for Swimmer’s Ear and Middle Ear Infections
Quick take: Keeping ear canals dry and leaving earwax alone prevents many swimmer’s ear cases. Fewer colds and a smoke-free home help lower middle ear infection risk.
For swimmer’s ear, the CDC suggests:
- Wear a swim cap, earplugs, or custom swim molds.
- Tilt the head and tug the earlobe to drain water, then towel-dry the outer ear.
- If water remains, use a hair dryer on its lowest setting, held several inches away.
- Keep cotton swabs and other objects out of the canal, and leave earwax alone.
- Ask a provider before using ear-drying drops.
For middle ear infections, Mayo Clinic suggests frequent handwashing, a smoke-free home, holding bottle-fed babies upright, and asking your doctor about vaccines such as the flu shot.
If your child has tubes, the AAO-HNS Foundation’s ear tube guidance says most kids can swim and bathe without earplugs. Follow your own ENT’s instructions.
When to See a Doctor About Ear Pain
Quick take: See a doctor for ear pain that is severe, lasts more than 2 to 3 days, gets worse, or comes with drainage or hearing loss. Any ear symptoms in a baby under 6 months warrant a call.
These are reasons to call your doctor, not a home diagnosis tool:
- Severe pain, or symptoms that last beyond 2 to 3 days or worsen
- Fluid, pus, or blood from the ear, or hearing loss
- Any ear symptoms in a baby younger than 6 months
- Redness or swelling spreading to the outer ear or face
- Dizziness or ringing after starting drops
- No improvement in the timeframe your doctor gave you
The Bottom Line on Custom Ear Drops
Quick take: Where the infection lives and whether the eardrum is intact shape, which treatment and which drops make sense.
Swimmer’s ear and middle ear infections can feel alike at 9 p.m., but they are treated differently. Tubes or a perforated eardrum change, which drops are safe, so skip the leftovers. Custom ear drops are one tool ENTs use when a standard product does not fit, and they always start with a prescription.
Have questions about whether a compounded medication is right for you? Talk to your prescribing physician, then connect with the pharmacists at King’s Pharmacy and Compounding Center in Irvine, CA, to get started.
Request a Refill or Contact King’s Pharmacy at 949.387.0780.
Medical disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice. Compounded medications require a valid prescription.
Frequently Asked Questions
Quick take: Short answers to common questions about ear infections and custom ear drops.
How can I tell if it’s swimmer’s ear or a middle ear infection?
Pain when the outer ear is tugged often points to the ear canal, while a middle ear infection commonly follows a cold and causes deeper pain or pressure. These signs overlap, and only a clinician examining the eardrum can tell them apart. See a doctor before using any drops.
Are ear drops safe if my child has ear tubes?
Only use drops your child’s ENT prescribes as appropriate for ears with tubes, and avoid over-the-counter ear-drying drops. Tube drainage is usually treated with prescription antibiotic ear drops rather than oral antibiotics, so call the ENT if you notice it.
Why would an ENT prescribe custom ear drops instead of a standard drop?
An ENT may consider custom ear drops for allergies or preservative sensitivity, a needed combination not sold as one drop, or a fungal infection that requires an antifungal. Some ENTs also use powder forms for chronically draining ears, and cost or availability can play a role.
Are compounded ear drops FDA-approved?
No. Compounded medications are not FDA-approved, so the FDA does not review their safety, effectiveness, or quality before dispensing. They are prepared for an individual patient and require a valid prescription.
Can swimmer’s ear be prevented?
Often, yes. Keeping ears dry after swimming, avoiding cotton swabs, and leaving earwax alone all help. Ask a provider before using ear-drying drops, and skip them if you have ear tubes, a perforated eardrum, drainage, or active swimmer’s ear.
