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Corsodyl: How Often to Use It and When to Stop

Corsodyl Mouthwash is a trusted antibacterial mouthwash used to help treat gum disease, mouth ulcers, oral thrush and denture-related soreness. To get the best results, it's important to use it correctly and only for the recommended length of time. This guide explains how often to use Corsodyl, when to stop, possible side effects and frequently asked questions.

Quick Answer

Use 10 mL of Corsodyl Mouthwash, rinse around your mouth for 1 minute, then spit it out. Use it twice daily, morning and evening.

  • Gum disease (gingivitis): Use for up to 4 weeks.
  • Mouth ulcers or oral thrush: Continue for 2 days after symptoms have cleared.
  • Denture-related soreness: Soak dentures in Corsodyl for at least 15 minutes twice daily.

Avoid using Corsodyl continuously beyond the recommended course, as prolonged use can stain teeth and affect taste.

What Is Corsodyl and What's It Used For?

Corsodyl Mouthwash contains chlorhexidine digluconate 0.2%, an antimicrobial ingredient that helps reduce bacteria, yeasts and fungi commonly found in the mouth.

It is commonly used to help manage:

  • Gingivitis (gum disease)
  • Mouth ulcers
  • Oral thrush
  • Denture-related sore mouth
  • Poor gum health following dental treatment

Corsodyl is intended as a short-term treatment and should be used alongside good daily oral hygiene and professional dental advice where appropriate.

How Often Should You Use Corsodyl?

  1. Brush your teeth as normal.
  2. Rinse your mouth thoroughly with water.
  3. Measure 10 mL of Corsodyl.
  4. Rinse around your mouth for approximately 1 minute.
  5. Spit the mouthwash out-do not swallow.
  6. Repeat twice daily, morning and evening.
Top Tip: Use Corsodyl at a different time from brushing your teeth whenever possible. Some toothpaste ingredients can reduce the effectiveness of chlorhexidine if used immediately before the mouthwash.

How Long Should You Use Corsodyl?

Condition Recommended Duration
Gum disease (Gingivitis) Up to 4 weeks
Mouth ulcers Continue for 2 days after symptoms clear
Oral thrush Continue for 2 days after symptoms clear
Denture sore mouth Soak dentures for at least 15 minutes twice daily
Important: Corsodyl should not be used indefinitely as a replacement for normal oral hygiene. If symptoms persist after your treatment course, arrange an appointment with your dentist instead of continuing treatment.

Does Corsodyl Stain Teeth?

Yes. Chlorhexidine mouthwashes such as Corsodyl can cause temporary staining of the teeth and tongue during treatment.

This is a common cosmetic effect and one of the main reasons Corsodyl is recommended for short-term use only.

  • Staining usually fades after stopping treatment.
  • A dental hygienist can professionally remove persistent staining.
  • Taste changes are also common but are usually temporary.

Corsodyl Side Effects to Be Aware Of

Possible side effects include:

  • Temporary tingling or burning sensation on the tongue.
  • Temporary changes in taste.
  • Brown staining of teeth or tongue.
  • Mouth irritation or peeling.

If the inside of your mouth begins to peel, dilute Corsodyl with an equal amount of water before your next use.

Seek urgent medical help immediately if you develop:
  • Swelling of the face, lips or tongue
  • Difficulty breathing
  • Wheezing
  • Signs of a severe allergic reaction

This guidance is based on the manufacturer's Patient Information Leaflet and should not replace advice from your dentist, pharmacist or doctor.

Frequently Asked Questions

Can I use Corsodyl every day?
You can use it twice daily during a recommended course (e.g. up to 4 weeks for gum disease), but it isn't intended for continuous, indefinite daily use as a substitute for regular oral hygiene.
How long does it take Corsodyl to work for gum disease?
Most gingivitis treatment courses run for around a month. You may notice improvement before then, but it's best to complete the full course as advised.
Can I use Corsodyl straight after brushing my teeth?
It's better to rinse your mouth with water first or use Corsodyl at a different time of day, as certain toothpaste ingredients can reduce its effectiveness if used immediately beforehand.
What should I do if my mouth peels after using Corsodyl?
Dilute Corsodyl with an equal amount of water before your next use. If irritation continues, stop using it and speak to a pharmacist.
Is it safe to swallow Corsodyl mouthwash?
No - it should be spat out after use, not swallowed. If it is accidentally swallowed in normal use, significant harm is unlikely, but contact NHS 111 or a pharmacist if you're concerned, especially for a child.

Ready to Start Your Corsodyl Course?

Shop Corsodyl Mouthwash from Pharmazon Direct and support healthy gums with fast UK delivery.

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If your symptoms haven't improved after your recommended treatment course, it's important to arrange a dental check-up rather than continuing to self-treat.


Medical Disclaimer: This article is intended for general information only and should not replace professional medical advice. Always read the Patient Information Leaflet supplied with your medicine and follow the advice of your dentist, doctor or pharmacist.

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