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Fluticasone Side Effects: What to Expect and When to Seek Help

Last reviewed: December 2025

Common Side Effects

These effects are generally mild and often improve with continued use:

Nasal irritation:

  • Burning or stinging in nose
  • Dryness in nasal passages
  • Usually mild and temporary
  • Proper technique reduces this

Nosebleeds (epistaxis):

  • Most common significant side effect
  • Usually minor spotting
  • More likely if aiming at septum
  • May improve with proper technique
  • Use saline spray to keep passages moist

Headache:

  • Reported by some users
  • Usually mild
  • May decrease with continued use

Unpleasant taste or smell:

  • Medication may drip to throat
  • Temporary after each dose
  • Generally mild

Sneezing after spraying:

  • Brief irritation response
  • Normal and temporary
  • Doesn’t mean it’s not working

Throat irritation:

  • From post-nasal drip of medication
  • Usually mild
  • Rinse mouth if bothersome

Less Common Side Effects

Nasal dryness:

  • Can be persistent for some
  • Use saline spray to help
  • Consider humidifier

Nasal sores or ulcers:

  • Rare but possible
  • Stop using and consult doctor if occurs
  • Usually from improper technique (hitting septum)

Cough:

  • From post-nasal drip
  • Usually mild
  • May improve with adjusted technique

Nausea:

  • Uncommon
  • May be from swallowed medication
  • Try not to sniff hard after spraying

Serious Side Effects (Seek Medical Help)

Contact a healthcare provider if you experience:

Signs of infection:

  • Thick, colored nasal discharge
  • Fever
  • Facial pain/pressure
  • White patches in nose or throat

Severe nosebleeds:

  • Frequent or heavy bleeding
  • Bleeding that won’t stop
  • Blood clots in mucus

Vision problems:

  • Blurred vision
  • Eye pain
  • Seeing halos around lights
  • Could indicate glaucoma (rare)

Allergic reaction:

  • Rash or hives
  • Swelling of face/throat
  • Difficulty breathing
  • Seek immediate help

Nasal septum perforation:

  • Rare
  • Usually from long-term misuse
  • Whistling sound when breathing through nose

Long-Term Use Considerations

With extended use (months to years), additional considerations:

Nasal septum issues:

  • Risk of perforation with chronic use
  • Proper technique greatly reduces risk
  • Regular check-ups if using long-term

Eye effects:

  • Small increased risk of cataracts
  • Small increased risk of glaucoma
  • More concern with oral/inhaled steroids than nasal
  • Report vision changes to doctor

Growth in children:

  • Very small potential effect on growth velocity
  • Studies show minimal impact
  • Benefits usually outweigh risks
  • Doctor may monitor growth

HPA axis suppression:

  • Very rare with nasal use at recommended doses
  • More concern with oral steroids
  • Could theoretically affect stress response
  • Use lowest effective dose

Who Is More Prone to Side Effects?

Higher risk of nosebleeds:

  • Those using blood thinners (aspirin, warfarin)
  • People with clotting disorders
  • Dry nasal passages
  • Improper spray technique

Need extra monitoring:

  • Those using other corticosteroids
  • People with glaucoma or cataracts
  • Immunocompromised individuals
  • Children (growth monitoring)

Minimizing Side Effects

To reduce nosebleeds:

  • Aim spray away from septum (toward outer wall)
  • Use saline spray before and after
  • Keep nasal passages moist
  • Use humidifier in dry environments
  • Don’t pick or blow nose forcefully

To reduce irritation:

  • Use proper technique consistently
  • Prime spray before first use
  • Keep nozzle clean
  • Consider fluticasone furoate (Sensimist) for gentler mist

To reduce taste issues:

  • Don’t sniff hard after spraying
  • Breathe out through mouth after dose
  • Rinse mouth with water if needed

Local vs. Systemic Effects

Why nasal steroids are different from oral steroids:

  • Minimal systemic absorption (less than 2% typically)
  • Effects concentrated where needed
  • Very low blood levels
  • Much safer profile than oral corticosteroids

The “steroid” concern:

  • Nasal corticosteroids are not the same as anabolic steroids
  • Not the same as prednisone pills
  • Long safety record when used as directed
  • Benefits typically outweigh risks for allergies

When to Stop Using

Discontinue and consult healthcare provider if:

  • Frequent or severe nosebleeds
  • Signs of nasal infection
  • Symptoms worsening despite use
  • White patches appear in nose
  • Any concerning symptoms develop
  • Need to use longer than 6 months (OTC)

Sources

  • FDA adverse event data
  • American Academy of Allergy, Asthma & Immunology
  • Clinical trials and post-marketing surveillance
  • Cochrane reviews on intranasal corticosteroids
Last reviewed: December 2025