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Mometasone

Mometasone

A steroid nasal spray for hay fever and a potent cream for skin — and the spray only works if aimed correctly.

Allergy

Nasonex, Elocon, mometasone furoate

Explained by a GMC-registered GP, not a leaflet

Honest about what we can and cannot prescribe remotely

Side effects given the same weight as benefits

Your NHS records in the room, with your consent

Clinically reviewed by Dr Mohammad Khan · Last reviewed

September 5, 2026

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Sick Notes
Private Prescriptions
Blood Tests
Menopause & HRT
Weight Management
Mental Health
Specialist Referrals

What it is

Mometasone furoate is a corticosteroid used in two quite different ways, and the confusion between them is worth clearing up first.

  • As a nasal spray (Nasonex) — for hay fever and persistent nasal allergy. It reduces inflammation in the nasal lining
  • As a cream, ointment or scalp lotion (Elocon) — a potent topical steroid for eczema and psoriasis

Very little of the nasal spray is absorbed into the bloodstream, which is what makes it safe for long-term daily use through a hay fever season.

The cream is a different proposition. Elocon sits in the potent category — several steps above hydrocortisone — and is used in short courses on specific areas rather than freely.

What it is used for

Nasal spray

  • Hay fever and seasonal allergic rhinitis
  • Persistent year-round allergic rhinitis — dust mite, pets, mould
  • Nasal polyps
  • As an adjunct in some sinusitis

Cream, ointment and scalp lotion

  • Eczema not responding to milder steroids
  • Psoriasis on the body or scalp
  • Other inflammatory skin conditions on thicker skin

How to take it

The nasal spray — technique decides whether it works

  1. Blow your nose first
  2. Tilt your head slightly forwards, not back
  3. Use the opposite hand to the nostril — right hand for the left nostril
  4. Aim outwards, towards the ear on that side. This is the critical step: aiming at the middle sprays the septum, which causes irritation, crusting and nosebleeds, and delivers the drug to the wrong place
  5. Do not sniff hard. A gentle breath is enough — sniffing sends it straight down the throat

Timing

Start two weeks before your hay fever season and use it every single day. Steroid nasal sprays are preventive and take days to reach full effect. Used only when symptoms are bad, they will seem not to work — which is the commonest reason people abandon them.

The cream

  • Thin layer, once daily — more often is not better
  • Short courses, typically up to two weeks on the body
  • Not on the face, groin or armpits unless specifically advised
  • Continue emollients alongside, which is what maintains control between flares

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Side effects

Nasal spray

  • Nosebleeds and nasal irritation — the commonest, and usually a sign of aiming at the septum rather than away from it
  • Dryness, crusting, sneezing
  • Sore throat, headache
  • Rarely, septal perforation with prolonged incorrect technique

Systemic effects are minimal at normal doses, which is the point of a topical nasal steroid.

Cream and ointment

  • Skin thinning, with prolonged use — the main concern with a potent steroid
  • Stretch marks, which are permanent
  • Visible small blood vessels, and lightening of the skin at the site
  • Increased hair growth
  • Worsening of untreated fungal, bacterial or viral skin infection
  • Perioral dermatitis and steroid-induced rosacea, if used on the face

Not suitable if

Nasal spray

  • You have an untreated nasal infection
  • You have had recent nasal surgery or a nasal injury that has not healed
  • You have had tuberculosis or an untreated fungal infection

Cream and ointment

  • The problem is infected, fungal or viral — cold sores, shingles, ringworm, impetigo. A potent steroid makes all of these worse
  • It is acne or rosacea — steroids worsen both
  • You are treating a child, unless specifically advised
  • It is for the face, groin or armpits, without specific advice — skin there is thin and absorbs readily

Neither is used in pregnancy without advice, though the nasal spray is generally considered low risk where treatment is needed.

Interactions and monitoring

Ritonavir and some antifungals such as ketoconazole and itraconazole can raise steroid levels by slowing their breakdown, which occasionally matters with prolonged use.

No routine monitoring is needed for a nasal spray at standard doses, even long term.

For the cream, what needs watching is duration and site. A potent topical steroid used continuously for months, or applied to thin skin, is where the lasting problems come from — and those changes do not reverse.

In children using both a steroid nasal spray and an inhaled steroid for asthma, growth is worth monitoring, since the doses add up.

Can we prescribe this?

Yes for both, and this is a good example of where a consultation adds more than the prescription does.

For nasal symptoms

The commonest reason a steroid nasal spray “does not work” is technique and timing, not the drug. Aiming at the septum instead of away from it, sniffing hard, starting too late, and using it only on bad days between them account for most failures. Twenty minutes is enough to fix all four.

Some steroid nasal sprays are available over the counter, and for straightforward seasonal hay fever a pharmacy is cheaper. We would say so.

For skin

Eczema and psoriasis assess well from good photographs. What matters is choosing an appropriate potency for the site, setting a clear duration, and making sure emollients are being used properly — which they usually are not.

What we will not do is issue a potent steroid as an open repeat. Where eczema needs continuous potent treatment, it needs a dermatology opinion rather than a standing prescription.

This page is information, not an offer to supply.

Cost and supply

Mometasone is off patent and generic versions are inexpensive in both forms. On a private prescription the cost is broadly comparable to the England NHS prescription charge. NHS prescriptions are free in Wales.

What you can buy without a prescription

  • Beclometasone nasal spray is available over the counter for hay fever, costs a few pounds, and works by the same mechanism. For ordinary seasonal hay fever there is no need to pay for a consultation
  • Hydrocortisone 1% cream is over the counter for mild eczema
  • Emollients are cheap, available over the counter, and do more for eczema over a year than any steroid does

Where paying is justified

Hay fever that is not responding despite a spray — usually a technique problem worth twenty minutes — or eczema needing something more potent than hydrocortisone with a proper plan attached.

Stopping or switching

Nasal spray

Continue daily through your season, then stop. There is no withdrawal and no need to taper. Stopping and restarting according to how you feel is the least effective way to use it.

If it is not working, check these before changing drug: are you aiming outwards? Are you using it every day? Did you start early enough? Have you given it two full weeks?

Cream

Step down rather than stopping abruptly after a long course — reduce frequency, then move to a milder steroid, then to emollients alone. Abrupt withdrawal after prolonged potent use can cause a rebound flare.

Alternatives

  • Beclometasone nasal spray — over the counter, same mechanism
  • Antihistamines such as fexofenadine — alongside rather than instead of, for hay fever
  • Saline nasal rinses — cheap and genuinely effective
  • Betamethasone or clobetasol — more potent topical steroids, for resistant skin disease
  • Tacrolimus or pimecrolimus — steroid-free options for the face and skin folds

Common questions

Why is my nasal spray not working?

Almost always one of four things: aiming at the middle of the nose instead of outwards, sniffing hard, starting too late, or using it only on bad days.

Steroid nasal sprays are preventive and take up to two weeks. Used daily and started early, they are the single most effective hay fever treatment — more so than antihistamines.

Why am I getting nosebleeds from it?

Because the spray is hitting the septum. Use the opposite hand to the nostril and aim towards the ear on that side. This one change resolves most nosebleeds from nasal sprays.

Is it safe to use every day for months?

Yes — the nasal spray is designed for exactly that, and very little is absorbed. Daily use through a whole season is correct use, not overuse.

Is the cream strong?

Yes. Elocon is a potent steroid, several steps above hydrocortisone. That is why it is used in short courses, on specific areas, and not on the face or in skin folds without advice.

Can I use the cream on my face?

Not without being told to. Facial skin is thin and shows steroid damage soonest, and steroid-induced rosacea is difficult to unpick afterwards.

Will steroid cream thin my skin?

Used correctly — thin layer, short course, right site — the risk is low. The problems come from potent steroids used continuously for months, or on thin skin.

Fear of steroids causes its own harm, because undertreated eczema is itchy, infected and miserable. The answer is using enough for long enough, then stopping.

Can I use the spray and antihistamines together?

Yes, and that combination is standard for hay fever that is not controlled by one alone. Add antihistamine eye drops for eye symptoms.

Dr Mohammad Zubair Khan, GMC-registered private GP and founder of Cheshire Clinics

Clinically reviewed by Dr Mohammad Zubair Khan, GMC 7563469

Last reviewed

September 5, 2026

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Will I see the same doctor each time?

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Can you see my NHS records?

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Can you prescribe antibiotics?

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What if the GP cannot help with what I need?

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What should I do in an emergency?

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