Cold sores - everything you need to know

Dentist Bayar
February 2024
2 min estimated readingtime

Cold sores are a common oral health challenge that is usually harmless in itself but can cause discomfort and pain and can interfere with both eating and speaking.

Why do I get cold sores?

Cold sores are very common, with about 20% of the population experiencing them to a greater or lesser degree. The causes of cold sores are not fully understood, but a combination of genetic factors, environmental influences, and overall health seems to play a role. In some cases, they may be related to other stomach or intestinal problems. Talk to your dentist if you suffer from frequent cold sores or if they are difficult to get rid of.

Some possible causes of cold sores include:

  • Sores resulting from biting or burning the inside of the mouth can trigger cold sores.
  • Hormonal changes or stress. Cold sores often occur just before menstruation.
  • Some people are more prone to cold sores as a recurring problem due to genetics.
  • Certain foods and beverages can trigger the development of cold sores in some individuals.
  • Deficiencies in iron and certain vitamins. Your general practitioner can help you check this.

What do cold sores look like?

Cold sores are sores in the oral cavity, on the tongue, or gums that appear as white or yellowish "craters."

How to get rid of cold sores?

Although cold sores usually heal on their own, there are measures you can take to relieve pain and discomfort:

  • Maintain good oral hygiene. Feel free to talk to your dentist about what you can do if, for example, it hurts to brush your teeth.
  • Avoid irritating foods and beverages. This can include acidic drinks and heavily spiced foods.
  • Avoid toothpastes and mouthwashes containing the detergent sodium lauryl sulfate (SLS). If you are already prone to cold sores, this substance can trigger them more.
  • Over-the-counter products from the pharmacy can form a protective barrier over the sore, which may help relieve pain.

When does a cold sore go away?

Most people find that the sores heal on their own after 10-14 days. Contact your dentist immediately if the cold sore has not healed after two weeks.

When should you contact a dentist?

  • If the gums are severely inflamed and painful, and self-treatment is not effective enough, the dentist should assess what treatment is necessary for you.
  • If you frequently suffer from cold sores.
  • If the cold sore has not healed after two weeks. We always take a sore that does not heal seriously.