Chlorhexidine is a disinfectant and antiseptic ingredient commonly used in mouthwashes, like the Corsodyl Treatment range, to treat bleeding gums and gingivitis. You can buy Corsodyl chlorhexidine treatment mouthwashes over the counter from supermarkets and pharmacies, and it can be used by most adults and children aged 12 years or older.1

If your dentist says you have gum disease, you may benefit from chlorhexidine gum disease treatment products.1 Learn more about chlorhexidine below and how it can be used to treat mild gum disease.

What is Chlorhexidine?

As an antiseptic and disinfectant, chlorhexidine helps kill bacteria in the mouth1 Chlorhexidine treatment mouthwashes such as Corsodyl Mint Intensive Treatment Mouthwash help reduce plaque bacteria to help heal your gums and stop inflammation and bleeding.

You may have gingivitis, or gum disease, if your gums are red, sore, swollen, inflamed, or bleed when you brush or eat hard foods like apples. It’s important to treat gingivitis early so that it doesn’t progress into periodontitis, a more serious form of gum disease which can lead to tooth loss.2,3 If you are concerned about your gum health, ask your dentist for advice.

In general, when treating gingivitis, chlorhexidine treatments should be used for no more than 1 month.1 Continue using the product until you finish the course, even if your gums feel better – this will increase the chances of successful treatment. Consult your dentist to find out how they recommend treating early gum disease when you notice you have bleeding gums.1

The Benefits of Chlorhexidine Treatment Mouthwash

Chlorhexidine treatment mouthwash is an effective and accessible way to treat mild gingivitis. The benefits of chlorhexidine products include:1

  • Chlorhexidine forms a protective coating over your teeth and gums for up to 12 hours after use, helping to prevent plaque bacteria build-up and treating gum inflammation.
  • Its antiseptic properties get to work immediately after use.
  • It can be used by adults and children aged 12 years or older. Ask your dentist or pharmacist before using chlorhexidine mouthwash if you have allergies to any medicines or are pregnant or breastfeeding.
  • It is available over the counter in many supermarkets and pharmacies in the UK.

Corsodyl chlorhexidine gum treatment products come in mouthwash and dental gel formats.

How to Use Chlorhexidine Mouthwash

At home treatments for bleeding gums, gum irritation and gum inflammation containing chlorhexidine digluconate are available, such as Corsodyl Original Mouthwash. Directions for use:

  • Use the mouthwash cap to measure out 10 ml of liquid (there is a ring inside the cap showing where to fill to).
  • Rinse your mouth with mouthwash for one minute.
  • Spit it out – do not swallow.
  • Repeat this twice a day. A one-month course is generally recommended. Consult your dentist to find out how long they recommend you use chlorhexidine mouthwash for depending on your condition.

Use chlorhexidine mouthwash alongside a normal oral care routine including twice-daily brushing with fluoride toothpaste and daily flossing between the teeth.

Corsodyl 0.2% Mouthwash, Corsodyl Original Mouthwash and Corsodyl Mint Mouthwash contain chlorhexidine for the treatment of gingivitis. Always read the label.


  1. NHS. Chlorhexidine. Accessed 15/11/2022.
  2. NHS. Gum disease. Accessed 15/11/2022.
  3. Guidance - Chapter 5: Periodontal diseases. Accessed 15/11/2022.


Explore the articles below to learn more about gum disease, as well as how to help combat and prevent it.