Aerosoles nasales de esteroides
Revisado por pares por Dr Rosalyn Adleman, MRCGPÚltima actualización por Dra. Rachel Hudson, MRCGPLast updated 24 Abr 2023
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En esta serie:EsteroidesInyecciones de esteroidesOral steroidsTopical steroidsUnidades de yema de dedo para esteroides tópicos
Steroid nasal sprays are medicines that are commonly used to treat symptoms of stuffiness or congestion in the nose. They are used most often for allergies of the nose, such as fiebre del heno. They are also used for other causes of persistent inflammation of the nose (rinitis). Steroid sprays reduce swelling and mucus in the nose, and usually work well.
People with hay fever only need to use them for a few months of the year. Others may need to use them long-term. You can buy some steroid nasal sprays from your supermarket or local pharmacy, without a prescription.
At a glance
Steroid nasal sprays reduce swelling and mucus in the nose.
They treat symptoms like a blocked, runny, or itchy nose.
It can take several days for the spray to work fully.
Steroid nasal sprays are generally safe, with few side-effects.
You can buy some steroid nasal sprays from supermarkets and pharmacies.
Consult a doctor before use if pregnant, breastfeeding, or if you have a nasal infection.

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What are steroid nasal sprays?
A steroid nasal spray is a small bottle of a solution which you spray into your nose. It contains a medicine called a corticosteroid or steroid. Steroid sprays reduce swelling (inflammation) and mucus in the nose, and usually work well.
Because the medicine is mainly absorbed in your nose, it has very little effect anywhere else in your body. Therefore they are considered to be very safe to use.
A steroid nasal spray is commonly used to treat symptoms of the nose such as:
Blocked nose.
Goteo nasal.
Congestion of the nose.
Itchiness of the nose.
These symptoms may be caused by conditions such as:
Allergies of the nose, como la fiebre del heno.
A steroid nasal spray may also be used to treat other conditions such as:
There are a number of different steroid nasal sprays - these include beclometasona, budesonida, fluticasona, mometasone y triamcinolone. They come in different brands. Ciclesonide and flunisolide are other steroid nasal sprays (they are not available in the UK).
How to use a steroid nasal spray
Volver al contenidoSteroid nasal spray administration

Blow your nose.
Shake the bottle.
Tilt your head forwards.
Hold the spray bottle upright.
Insert the tip of the spray bottle just inside one nostril. Close the other nostril with your other hand, and apply one or two sprays as prescribed.
Breathe in as you spray (but do not sniff hard as the spray then travels past the nose to the throat).
Do not angle the canister towards the middle or side of the nose, but straight up. With your head tilted forward, the spray should go to the back of your nose.
Repeat in the other nostril.
What if my nose is very blocked or runny?
Sometimes a very blocked or runny nose will prevent the steroid spray from getting through to work. A decongestant nasal spray which you can buy at pharmacies may then be useful. These contain decongestant medicines such as xylometazoline.
A decongestant spray has an immediate effect to clear a blocked nose. You can then use the steroid spray once the nose is clear.
Nota: decongestant sprays are not usually advised for more than a few days. If you use one for more than 5-7 days, a rebound, more severe congestion of the nose may develop. In contrast, steroid sprays work well to clear symptoms, and can be used for long periods.
What if my symptoms come and go?
If your symptoms are very mild, if they don't happen all that often or if they only start after a particular trigger - for example, if you have a cat allergy - a steroid nasal spray may not be the best treatment for you. A nasal spray containing a type of medicine called an antihistamine (such as azelastine or olopatadine) may be better. Only azelastine is available in the UK.
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How long does it take for steroid nasal sprays to work?
Volver al contenidoIt takes several days for a steroid spray to build up to its full effect. Therefore, you will not have an immediate relief of symptoms when you first start it. In some people it can take up to two weeks or longer to get the maximum benefit.
If you use the spray for hay fever, it is best to start using it at least a couple of weeks before the hay fever season starts.
¿Cuál es la duración habitual del tratamiento?
Volver al contenidoSome people only need a nasal spray for the hay fever season (a few months). However, if you have a persistent rhinitis, you may have to take treatment long-term to keep symptoms away.
Once symptoms are gone, you are still likely to need to use a steroid nasal spray regularly, to keep symptoms away. Your doctor may advise that you reduce the dose to a lower maintenance dose once symptoms have gone. The aim is to find the lowest dose that controls symptoms.
An occasional forgotten dose should not be a problem, but symptoms usually return after a few days if you stop taking the spray.
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Side-effects of steroid nasal sprays
Volver al contenidoSteroid nasal sprays rarely cause side-effects. This is because they are applied directly to the nose and very little of this medicine is absorbed into the body. Therefore, they are much less likely to cause side-effects in other parts of the body. Occasionally, they cause dryness, crusting, and bleeding of the nose.
If this occurs, stop it for a few days and then restart. There have been reports of nasal steroids possibly having an effect on behaviour, particularly in children. This is thought to be rare. However, a few people have reported hyperactivity, problems sleeping, ansiedad, depresión, and aggression.
Are nasal steroid sprays safe?
Long-term use of a steroid nasal spray is thought to be safe.
For a full list of possible side-effects please read the leaflet that came with your medicine.
Where to buy steroid nasal sprays
Volver al contenidoYou can buy a number of steroid nasal sprays from the supermarket and your local pharmacy. These include beclometasone, fluticasone and triamcinolone.
Who cannot use a steroid nasal spray?
Volver al contenidoMost people can use a steroid nasal spray, unless they have ever had an allergic reaction to this medicine. However, you should talk with your doctor or pharmacist before using a steroid nasal spray if you:
Have recently had surgery on your nose.
Have infection in your nose.
Are pregnant, trying for a baby or breastfeeding.
You may still be able to have this medicine - your doctor will advise you.
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Preguntas frecuentes
Can I use a steroid nasal spray if I also need other nasal treatments?
Yes, if your nose is very blocked or runny, preventing the steroid spray from working, you can first use a decongestant nasal spray from a pharmacy. This will clear your nose immediately. Once clear, you can then use your steroid spray. However, decongestant sprays should not be used for more than 5-7 days to prevent rebound congestion.
What should I do if I forget to use my steroid nasal spray one day?
An occasional forgotten dose of your steroid nasal spray should not cause a problem. However, if you stop taking the spray entirely, your symptoms are likely to return after a few days.
Can I get steroid nasal sprays without a prescription?
Yes, several steroid nasal sprays, including ones with beclometasone, fluticasone, and triamcinolone, are available to buy from supermarkets and local pharmacies without a prescription.
Are there different types of steroid nasal sprays, and do they all work the same?
There are a number of different steroid nasal sprays available. These include beclometasone, budesonide, fluticasone, mometasone, and triamcinolone, and they come in various brands. While they all belong to the corticosteroid family and work to reduce inflammation, their specific formulations and availability may differ, with some like ciclesonide and flunisolide not being available in the UK.
If my nasal symptoms only occur sometimes, is a steroid nasal spray still the best option for me?
If your symptoms are very mild, do not happen often, or are triggered by specific things like a cat allergy, a steroid nasal spray might not be the most suitable treatment. In such cases, a nasal spray containing an antihistamine medicine, such as azelastine (which is available in the UK), may be a more appropriate choice.
Lecturas adicionales y referencias
- Inhaled and intranasal corticosteroids: risk of psychological and behavioural side effects; Medicines and Healthcare products Regulatory Agency (MHRA), September 2010
- Formulario Nacional Británico (BNF); Servicios de Evidencia NICE (acceso solo en el Reino Unido)
- BSACI guideline for the diagnosis and management of allergic and non-allergic rhinitis; British Society for Allergy and Clinical Immunology (July 2017)
- Corticosteroids - topical (skin), nose, and eyes; NICE CKS, junio 2022 (acceso solo en el Reino Unido)
- Rinitis alérgica; NICE CKS, enero 2024 (acceso solo en el Reino Unido)
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About the authorView full bio

Dra. Rachel Hudson, MRCGP
General Practitioner and Medical Author
MBChB, MRCGP (2008), BSc (Medical Science), DFSRH, DRCOG, DCH
Dr Rachel Hudson, is an NHS GP working in the North West of England.
About the reviewerView full bio

Dr Rosalyn Adleman, MRCGP
MRCGP
Dr Rosalyn Adleman, is an NHS GP working in north London.
Historial del artículo
La información en esta página está escrita y revisada por pares por clínicos calificados.
Próxima revisión: 22 Abr 2028
24 Abr 2023 | Última versión

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