If you buy a chlorhexidine treatment in a pharmacy or supermarket, follow the instructions that come with it. For prescription medicines, follow the advice from your doctor, dentist or a pharmacist.
Wash your hands before and after using chlorhexidine. Keep it away from your eyes and ears. If chlorhexidine gets into your eyes or ears, rinse well with water.
The usual dose for children aged 12 and older is up to 5 lozenges a day. Adults can have up to 10 a day.
Put a lozenge in your mouth and let it melt slowly.
Wait at least 30 to 60 minutes before having something to eat or drink.
The usual dose is 10 ml, twice a day.
Pour 10ml into the measuring cup. Rinse the mouthwash around your mouth for about 1 minute. Spit out the mouthwash, do not swallow it.
Wait at least 30 to 60 minutes before having something to eat or drink.
The usual dose is 2 squirts at a time, up to 12 times a day.
Aim the spray onto your affected tooth, gum, ulcer or the sore part of your mouth.
Wait at least 30 to 60 minutes before having something to eat or drink.
The usual dose is 3 to 5 squirts. You can repeat this dose up to 10 times a day.
Wait at least 30 to 60 minutes before having something to eat or drink.
You’ll usually use the gel once or twice a day.
Put a small amount of gel onto your fingertip or a cotton bud. Gently wipe it across the surface of your mouth ulcer, gum or the sore part of your mouth.
Wait at least 30 to 60 minutes before having something to eat or drink.
Only use chlorhexidine lozenges and sore throat spray for a short time. Do not keep using them continuously.
Contact a doctor if your symptoms do not improve after 3 to 4 days.
Use your dental treatment at a different time of day to when you brush your teeth. This is because toothpaste can stop chlorhexidine working properly.
If you cannot use it at a different time, then rinse your mouth thoroughly with water after brushing your teeth. Wait at least 5 minutes before using chlorhexidine.
If your symptoms do not improve after one week, or if they get worse at any time, stop using chlorhexidine and contact your dentist or doctor.
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