Dexamethasone with antibacterial ear spray
Otomize
Revisado por pares por Sid DajaniÚltima actualización por Michael Stewart, MRPharmSLast updated 3 Feb 2025
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Use one spray in the affected ear(s) three times a day.
Continue to use the spray for two days after your symptoms have gone, but do not use the spray for more than seven days in total unless your doctor tells you otherwise.
If your symptoms do not improve within seven days, make another appointment to see your doctor.
At a glance
Dexamethasone with antibacterial ear spray treats outer ear inflammation and infection.
It is only available on prescription and can be used by adults and children over two.
Use one spray three times a day into the affected ear, continuing for two days after symptoms clear.
Do not use for more than seven days in total without speaking to your doctor.
Inform your doctor if you are pregnant, breastfeeding, or have a perforated eardrum.
A mild burning or stinging sensation can occur when you start using the spray.
If no improvement after a week, stop use and see your doctor.
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About dexamethasone with antibacterial ear spray
Tipo de medicamento | Anti-inflammatory and anti-infective ear spray |
Usado para | Inflammation and infection of the outer parts of the ear (otitis externa) |
También llamado | Otomize® |
Disponible como | Ear spray |
Otitis externa is a term used for inflammation in the ear when it is confined to the ear canal and does not go further than the eardrum. It is usually due to an infection. If you get things like water, shampoo or soap in an ear then it can cause itching. If you then scratch or poke your ear, this can damage the skin in the ear canal and cause inflammation. The inflamed skin can then quickly become infected.
The brand name for dexamethasone with antibacterial ear spray is Otomize®. It contains several ingredients - dexamethasone, neomycin and acetic acid. Together, these ingredients relieve inflammation, infection, itching and pain. Otomize® spray is only available on prescription. It can be prescribed for adults and for children over 2 years of age.
Before using Otomize® ear spray
Volver al contenidoTo make sure that this is the right treatment for you, before you start using the spray please make sure that your doctor knows:
Si estás embarazada o amamantando.
If you have a perforated eardrum, or if you have a grommet fitted in your ear.
Si alguna vez has tenido una reacción alérgica a un medicamento.
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How to use Otomize® ear spray
Volver al contenidoBefore you start using the spray, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about the ingredients, and it will also provide you with more information on how to use the spray.
Before you use the spray for the first time, shake the container gently and then press the pump down a number of times until you see a fine spray. Make sure that the nozzle is not directed at anyone and try not to inhale the spray as you do this.
Use one spray three times a day into the affected ear. To do this, place the tip of the nozzle into your ear and press the pump down once. You should continue to use the spray for two days after your symptoms have gone. Do not use the spray for longer than seven days in total, unless your doctor has told you otherwise.
If you forget to use the spray, don't worry, use it as soon as you remember and then go on as before.
If you feel there is no improvement in your symptoms after you have used the spray for a week, stop using it and make another appointment to see your doctor.
Obteniendo el máximo de tu tratamiento
Volver al contenidoYou can remove the nozzle in order to clean it. When you put it back on the container, make sure that it 'clicks' back into place correctly.
To help stop further bouts of inflammation, try not to let soap or shampoo get into your ear canal when you wash. You can do this when you have a shower by gently placing a piece of cotton wool coated in soft white paraffin (eg, Vaseline®) into your ear. Do not poke your ear with cotton buds or use the corner of a towel to dry your ears, as this may cause further inflammation.
Do not use olive oil or any other ear drops or sprays during treatment with Otomize®, unless told to by your doctor.
Otitis externa is more common in regular swimmers compared with non-swimmers. This is due to the water which gets into your ear canal. If it is not possible for you to avoid swimming, try to protect your ears by not submerging them in water if possible.
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Can this ear spray cause problems?
Volver al contenidoYou may get a slight feeling of burning or stinging when you first start using the spray. This is usually mild and soon passes. If you get a rash or if you notice any other symptoms which you think may be due to the spray, please ask your doctor or pharmacist for advice. Occasionally people can have a mild allergic reaction to the preservative in the spray.
How to store Otomize® ear spray
Volver al contenidoThe spray has an expiry of four weeks once opened. Do not keep any spray remaining after your course of treatment has finished to use at a later time.
Mantenga todos los medicamentos fuera del alcance y la vista de los niños.
Almacenar en un lugar fresco y seco, lejos del calor y la luz directos.
Información importante sobre todos los medicamentos
Volver al contenidoInformación importante sobre todos los medicamentos
Si vas a someterte a una operación o tratamiento dental, informa a la persona que realiza el tratamiento sobre los medicamentos que estás tomando o usando.
This preparation is for use in the ear only. If someone swallows some of it by accident, go to the accident and emergency department of your local hospital. Take the container with you, even if it is empty.
Este medicamento es para ti. Nunca lo des a otras personas, incluso si su condición parece ser la misma que la tuya.
No guardes medicamentos caducados o no deseados. Llévalos a tu farmacia local, que se encargará de desecharlos por ti.
Si tienes alguna pregunta sobre este medicamento, consulta a tu farmacéutico.
Informar efectos secundarios de un medicamento o vacuna
Si experimenta efectos secundarios, puede reportarlos en línea a través de Yellow Card website.

¿Inseguro sobre mezclar medicamentos?
Verifica posibles interacciones entre medicamentos, suplementos y alimentos antes de tomarlos juntos.
Preguntas frecuentes
What is otitis externa?
Otitis externa refers to inflammation in the ear that is limited to the ear canal and does not extend beyond the eardrum. It is commonly caused by an infection. This can happen if water, shampoo, or soap gets into the ear, causing itching. If the ear is then scratched or poked, it can damage the skin in the ear canal, leading to inflammation and then infection.
Can children use Otomize ear spray?
Yes, Otomize ear spray can be prescribed for children, but only for those over 2 years of age.
How long should I use Otomize ear spray?
You should continue using the spray for two days after your symptoms have disappeared. However, do not use the spray for longer than seven days in total, unless your doctor has specifically advised you to do so.
What should I do if my symptoms don't improve after using the spray?
If you notice no improvement in your symptoms after using the spray for a week, you should stop using it and schedule another appointment to see your doctor.
How can I prevent further ear inflammation?
To help prevent future episodes of inflammation, try to avoid getting soap or shampoo into your ear canal when washing. You can do this by gently placing a piece of cotton wool coated in soft white paraffin (like Vaseline) into your ear while showering. Avoid using cotton buds or the corner of a towel to clean or dry your ears, as this can cause further inflammation. If you swim regularly, try to protect your ears by not submerging them in water if possible, as water in the ear canal can contribute to otitis externa.
Can I use other ear drops or olive oil at the same time as Otomize?
No, you should not use olive oil or any other ear drops or sprays while you are being treated with Otomize, unless your doctor has specifically told you that it is safe to do so.
What should I do with leftover or expired Otomize spray?
The spray is only good for four weeks after it has been opened. You should not keep any spray remaining after your course of treatment is finished to use later. Do not keep out-of-date or unwanted medicines; instead, take them to your local pharmacy, which will dispose of them for you safely.
Lecturas adicionales y referencias
- Medicamentos Completos BNF 89ª Edición; Asociación Médica Británica y Sociedad Real de Farmacia de Gran Bretaña, Londres.
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About the authorView full bio

Michael Stewart, MRPharmS
Medicine Leaflet Review Manager – Contractor, Pharmacist
BPharm (Hons), MRPharmS
Michael is a community pharmacist practicing in the Midlands and South Yorkshire with more than 20 years’ experience advising on medicines and medical conditions. He has a strong background in healthcare training, having produced and delivered training courses for pharmacy teams and staff of residential care settings, including nurses. He has also contributed to pharmacy advisory boards for the management of low acuity conditions in the community.
About the reviewer

Sid Dajani
Sultan Dajani qualified at the London School of Pharmacy in 1994 and became the youngest elected member of the Royal Pharmaceutical Society council since its founding in 1842.
Historial del artículo
La información en esta página está escrita y revisada por pares por clínicos calificados.
Próxima revisión: 3 de febrero de 2028
3 Feb 2025 | Última versión

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