Ever have a paper cut or an irritated hangnail? They're not considered major health problems, but, boy, can they sting!

Something similar can occur in the corners of your mouth called angular cheilitis. It's also known as perleche, from the French word “to lick” (a common habit with this type of sore). It can occur at any age, with children or young adults developing it from drooling during sleep or orthodontic treatment.

Older adults, though, are more prone than younger people for a variety of reasons. Age-related wrinkling is a major factor, especially “marionette lines” that run from the mouth to the chin. Dried or thinned out skin due to exposure from cold, windy weather may also contribute to perleche.

Perleche can also develop from within the mouth, particularly if a person is experiencing restricted salivary flow leading to reduced lubrication around the lips. Poorly cleaned dentures, weakened facial supporting structure due to missing teeth, vitamin deficiencies and some systemic diseases can all lead to perleche. And if an oral yeast infection occurs around the cracked mouth corners, the irritation can worsen and prolong the healing process.

To clear up a case of cracked mouth corners, you should promptly see your dentist for treatment. Treatment will typically include some form of antifungal ointment or lozenge applied over a few days to clear up the sores and prevent or stop any infection. You might also need to apply a steroid ointment for inflammation and other ointments to facilitate healing.

To prevent future episodes, your dentist may ask you to use a chlorhexidine mouthrinse to curb yeast growth. If you wear dentures, you'll need to adopt a regular cleaning routine (as well as leaving them out at night). You might also wish to consider updated dental restorations or orthodontics to improve dental support, and help from a dermatologist if wrinkling might be a potential cause.

Cracked mouth corners won't harm you, but they can make for a miserable experience. Take steps to relieve the irritation and any future occurrence.

If you would like more information on angular cheilitis or similar oral conditions, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Cracked Corners of the Mouth.”