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Dry Mouth - Signs, symptoms and ways to manage a dry mouth

Patient Information Leaflet

Why is saliva important?

  • It keeps your mouth moist.
  • It helps you swallow and speak.
  • It helps protect your teeth from tooth decay.
  • It contains substances that help fight harmful germs.
  • It contains minerals that help keep tooth enamel strong.

What can cause a dry mouth?

  • Not enough water in the body
  • Dehydration means your body does not have enough water.
  • This can happen with fever, heavy sweating, vomiting, blood loss or burns.

Medicines

image of pills

  • Many medicines can cause a dry mouth as a side effect.
  • These include some medicines for depression, nerve pain, high blood pressure, anxiety, allergies, blocked noses, muscle problems and pain.

Health conditions

  • Some health conditions can cause a dry mouth.
  • These include diabetes, cystic fibrosis, rheumatoid arthritis and Sjögren's syndrome. Sjögren's syndrome can cause a dry mouth and dry eyes.

What might a dry mouth feel or look like?

Dry lips image

  • Your mouth feels dry.
  • Eating, swallowing or speaking may hurt.
  • You may have a burning feeling in your mouth.
  • You may have less saliva, or saliva that is frothy or stringy.
  • Your lips or tongue may be dry or cracked.
  • You may get fungal infections in your mouth.

What can I do to help?

Patient and dentist image

Woman drinking water

  • Take small sips of cold water.
  • You can suck ice chips if this is safe for you.
  • Try a water-based mouth gel or spray.
  • A non-foaming toothpaste may help.
  • Ask a dentist or pharmacist if you are not sure which toothpaste to use.
  • Try to avoid foods that are acidic, spicy, salty or sugary.
  • Brush your teeth twice a day for 2 minutes with fluoride toothpaste.
  • Spit out the toothpaste but do not rinse with water.
  • Cut down on sugary food and drinks.
  • Choose water or plain milk instead.
  • Have regular dental check-ups.

Can I use community dental services?

  • People with high dental needs may be referred to Whittington Health Community Dental Services.
  • Please check the service website for the latest information about who can use the service and how to get a referral.

Get more information

Contact our service

  • Call Community Dental Services on 020 3316 8353.
Published:
13 Oct 2026
Review:
13 Oct 2028
Reference:
SC/Dent/DryMouth/02
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