Oral Thrush Treatment
Fast, professional treatment for mouth thrush. Get expert assessment and antifungal medication at your local pharmacy.
What is Oral Thrush?
Oral thrush (also called oral candidiasis) is a fungal infection of the mouth caused by an overgrowth of Candida yeast. While Candida normally lives harmlessly in the mouth, certain conditions can cause it to multiply and cause infection.
Oral thrush is common in babies, older people with dentures, people who use steroid inhalers, and those with weakened immune systems. It causes white patches in the mouth that cannot be rubbed off, along with soreness and altered taste.
Through the HSE Common Conditions Service, pharmacists can assess your symptoms, prescribe antifungal medication, and provide advice on preventing recurrence.
Signs & Symptoms
In adults and children over 12 months:
- • White patches or spots in mouth that cannot be rubbed off
- • Red patches that may bleed if you scrape off a white spot
- • Spots may join together to form larger yellow patches
- • Red, sore area under dentures
- • Cracks at corners of mouth
- • Unpleasant taste or food doesn't taste the same
- • Sore, painful tongue or gums
In Babies:
- • White coating on tongue that won't wipe off (unlike milk residue)
- • White spots on cheeks, gums, tongue, or roof of mouth
- • Refusing to feed or pulling away from breast/bottle
- • Unsettled or fussy when feeding
- • May also have thrush nappy rash
How to tell the difference from milk residue in babies: Gently try to wipe the white coating with a clean, damp cloth. Milk residue will wipe away easily; thrush will not, and may bleed slightly if scraped.
When to See a Pharmacist
You have white patches in your mouth that won't rub off
Your baby (over 1 month old) has white coating that won't wipe away
You use a steroid inhaler and have developed mouth soreness
You wear dentures and have red, sore areas in your mouth
See a GP instead if:
- • Baby is under 1 month old
- • Difficulty or pain when swallowing (may have spread to esophagus)
- • Symptoms not improving after 1 week of treatment
- • Oral thrush keeps coming back
- • You have a weakened immune system and symptoms are severe
- • White patches CAN be rubbed off (may be different condition)
Treatment Available
Antifungal medication (gel or liquid) is the main treatment for oral thrush. It works by killing the Candida yeast causing the infection.
What the pharmacist will do:
- •Examine your mouth to confirm oral thrush
- •Identify likely cause (dentures, inhalers, medications, etc.)
- •Prescribe antifungal gel or liquid
- •Explain correct application technique
- •Advise on preventing recurrence
- •Refer to GP if needed
Prevention Tips
If you use a steroid inhaler:
- Use a spacer device with your inhaler
- Rinse your mouth with water and spit out after every use
- Use inhaler before brushing teeth
If you wear dentures:
- Remove dentures at night
- Clean dentures daily with soap or denture cleaner
- Soak overnight in chlorhexidine or diluted bleach solution
- Rinse thoroughly before wearing
- Have denture fit checked regularly
General prevention:
- Maintain good oral hygiene
- Don't smoke
- If diabetic, keep blood sugar well controlled
- Limit sugary foods and drinks
How to Book a Consultation
Option 1: Book Online
Search for pharmacies in your area and book your consultation time online.
Find a PharmacyOption 2: Walk In or Call
Visit your local participating pharmacy directly or call ahead to book an appointment.
Consultation fee: Typically around €35 (varies by pharmacy). Antifungal medication costs are additional.
Frequently Asked Questions
What causes oral thrush?
Oral thrush is caused by overgrowth of Candida yeast (usually Candida albicans) which normally lives harmlessly in the mouth. Overgrowth occurs when the normal balance is disrupted by: ANTIBIOTICS (kill beneficial bacteria); STEROID INHALERS (without rinsing mouth after); WEAKENED IMMUNE SYSTEM (HIV, cancer, chemotherapy); DENTURES (especially poorly fitting or cleaned); DRY MOUTH (medications, medical conditions); DIABETES (high blood sugar); SMOKING. In babies, it's common because their immune systems are still developing.
How do I know if I have oral thrush?
Key signs of oral thrush: WHITE PATCHES or spots in mouth that CANNOT be rubbed off (key feature - milk residue can be wiped away); red, sore areas that may bleed if you try to scrape off white patches; cracks at corners of mouth; unpleasant taste or food tasting different; sore, painful tongue or gums. Under dentures: red, sore area without typical white patches. If patches CAN be rubbed off, it may be something else - see a dentist or GP.
Can a pharmacist treat oral thrush?
Yes. Under the HSE Common Conditions Service, pharmacists can assess oral thrush and prescribe antifungal treatment (miconazole oral gel or nystatin suspension). The consultation includes oral examination, identification of underlying causes (inhalers, dentures, etc.), treatment advice, and prevention strategies. Consultation fee typically €35. For babies over 1 month, children, and adults. Pharmacist will refer to GP for: babies under 1 month, difficulty swallowing, recurrent thrush, immunocompromised patients.
How long does oral thrush take to clear?
With antifungal treatment: symptoms typically start improving within 3-5 days. Complete resolution usually within 1-2 weeks. Treatment duration: Continue for 48 hours after symptoms clear (nystatin) or 7 days after symptoms clear (miconazole) to prevent recurrence. Without treatment: may persist or worsen. Immunocompromised patients may need longer treatment courses. If no improvement after 7 days of treatment, see GP - may need different antifungal or investigation of underlying cause.
Is oral thrush contagious?
Oral thrush is generally NOT contagious between adults as Candida yeast normally lives in most people's mouths. However: BABIES can pass thrush to breastfeeding mothers' nipples (and vice versa) - both should be treated simultaneously. KISSING someone with active oral thrush could theoretically transfer yeast, but infection only develops if conditions favor overgrowth. Don't share utensils, cups, or toothbrushes during active infection.
I use a steroid inhaler - how do I prevent oral thrush?
Prevention for steroid inhaler users: 1) USE A SPACER device with your inhaler - deposits more medication in lungs, less in mouth; 2) RINSE mouth with water and SPIT after every use - don't swallow; 3) Clean spacer regularly as per instructions; 4) Use inhaler BEFORE brushing teeth; 5) Check inhaler technique with pharmacist. Up to 70% of inhaler users may develop thrush without proper technique. If thrush recurs despite these measures, talk to your doctor about alternative inhaler types.
How do I care for dentures to prevent thrush?
Denture care to prevent thrush: REMOVE dentures at night - give mouth time without dentures; CLEAN dentures daily with brush and soap or denture cleaner (not toothpaste - too abrasive); SOAK overnight in chlorhexidine solution or diluted bleach (1 teaspoon in glass of water); RINSE thoroughly before wearing; Check FIT - poorly fitting dentures create spaces where Candida grows; Get dentures ADJUSTED or REPLACED if loose; See dentist regularly. If treating thrush, treat BOTH mouth AND dentures.
When should I see a doctor about oral thrush?
See GP (not pharmacist) if: Baby under 1 month old; DIFFICULTY or PAIN SWALLOWING (may indicate spread to esophagus - serious); no improvement after 1 week of treatment; thrush keeps coming back (may indicate undiagnosed diabetes, HIV, or other condition); you're immunocompromised and symptoms are severe; you have other unexplained symptoms (weight loss, fatigue, night sweats); white patches CAN be rubbed off (may be leukoplakia - needs dental assessment).
Can babies get oral thrush?
Yes - oral thrush is VERY COMMON in babies, especially in first few months. Signs in babies: white coating in mouth (won't rub off unlike milk residue); refusing feeds or pulling away from breast/bottle; unsettled/fussy; white spots on cheeks, gums, tongue, roof of mouth. May also have nappy rash (thrush can affect both ends). Babies can pass to breastfeeding mother's nipples (nipple thrush - pink, shiny, painful nipples). BOTH baby and mother need simultaneous treatment. Pharmacist can treat babies over 1 month; under 1 month needs GP.
How much does oral thrush treatment cost at a pharmacy?
Consultation fee: typically €35 (varies by pharmacy). Antifungal gel (miconazole): approximately €8-12. Nystatin suspension: approximately €6-10. Total estimated cost: €40-50 without medical card. Medical card holders: consultation and medication may be fully covered. Drugs Payment Scheme (DPS): pay maximum €80 per month for approved medications. Over-the-counter miconazole gel available for recurrent cases if you've been diagnosed before - no consultation needed (approximately €10-15).
Find Participating Pharmacies
All pharmacies offering the Common Conditions Service provide treatment for all eight conditions, including oral thrush.
Search Pharmacies Near YouMedical content source: HSE.ie (Health Service Executive, Ireland)
Information accurate as of February 2026. For official HSE guidance, visit hse.ie/conditions/oral-thrush