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Perioral dermatitis, also known as periorificial dermatitis, is a common type of inflammatory skin rash. [2] Symptoms include multiple small (1–2 mm) bumps and blisters sometimes with background redness and scale, localized to the skin around the mouth and nostrils. Less commonly, the eyes and genitalia may be involved. [3]
Redness around the lips in circumoral distribution with dryness and scale is typical. [4] [15] Chapping may also occur, especially in cold weather. [16] If symptoms worsen due to persistent licking, cracked lips can occur usually on the lower lip. [5] Observation of the person's habitual behavior can also be a sign and symptom of lip licker's ...
Photographic comparison of: 1) a canker sore - inside the mouth, 2) herpes, 3) angular cheilitis and 4) chapped lips. Angular cheilitis is normally a diagnosis made clinically. If the sore is unilateral, rather than bilateral, this suggests a local factor (e.g., trauma) or a split syphilitic papule.
The inflammation may include the perioral skin (the skin around the mouth), the vermilion border, or the labial mucosa. [1] The skin and the vermilion border are more commonly involved, as the mucosa is less affected by inflammatory and allergic reactions. [1] Cheilitis is a general term, and there are many recognized types and different causes.
The lesions are located on the mucosa, usually bilaterally in the central part of the anterior buccal mucosa and along the occlusal plane level (the level at which the upper and lower teeth meet). Sometimes, the tongue or the labial mucosa (the inside lining of the lips) is affected by a similarly produced lesion, termed morsicatio linguarum ...
AC almost always affects the lower lip and only rarely the upper lip, probably because the lower lip is more exposed to the sun. [7] In the unusual cases reported where it affects the upper lip, this may be due to upper lip prominence. [7] The commissures (corners of the mouth) are not usually involved. [2] [6]
Local trauma is also associated with aphthous stomatitis, and it is known that trauma can decrease the mucosal barrier. Trauma could occur during injections of local anesthetic in the mouth, or otherwise during dental treatments, frictional trauma from a sharp surface in the mouth such as broken tooth, or from tooth brushing. [9]
The appearance of the involved mucosa is erythematous (red) and edematous (swollen), [4] sometimes with petechial hemorrhage (pin-points of bleeding). [1] This usually occurs beneath an upper denture. Sometimes angular cheilitis can coexist, which is inflammation of the corners of the mouth, also often associated with Candida albicans.