HealthInfo Aoraki-South Canterbury
Outer ear infection (otitis externa)
Outer ear infection, also called otitis externa or swimmer's ear, is an infection of the tube that runs from your outer ear to your ear drum (ear canal). Symptoms include pain, itching and discharge from your ear canal. It's caused by bacterial or fungal skin infections.
Because these bugs like to grow in warm moist areas, you're more likely to get otitis externa if your ears are often wet. This is why swimmers often get it.
You're also more likely to get infections if you have skin condition such as eczema or psoriasis in your ear canal.
Treating outer ear infections
We treat outer ear infections with ear drops and symptoms usually improve within a few days. This leaflet explains how to use ear drops. You can also take paracetamol for pain relief if you need it. If the infection is severe, you might need antibiotic tablets.
If you have a lot of pus or debris in your ear canal, it may need to be gently sucked out. Your practice nurse can often do this, or you may need to go to an ear hygiene clinic.
It's best to avoid getting water in your ears for seven to 10 days after you've had an outer ear infection.
Self-care for outer ear infections
To stop outer ear infections coming back:
- Don't poke anything into your ear canal as this can injure your ear canal and make infection more likely. It can also push debris further into the ear.
- Keep your ears dry when swimming – use a tightly fitting swimming cap.
- Use ear drops (ask your pharmacist or GP which to use) after swimming if you keep getting outer ear infections.
HealthInfo recommends the following pages
- DermNet NZ – Otitis externa
More information on otitis externa, including skin conditions that may cause it.
- Patient.info – Ear infection: Otitis externa
What causes otitis externa, how it is treated, and when to see your GP.
Written by HealthInfo clinical advisers. Last reviewed May 2020.
SourcesReview key: HIEIG-48027
