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Cheilitis is inflammation of the lips. This inflammation may include the perioral skin (the skin around the mouth), the vermilion border, and/or the labial mucosa.〔 The skin and the vermilion border are more commonly involved, as the mucosa is less affected by inflammatory and allergic reactions.〔 It is a general term, and there are many recognized types and different causes. Cheilitis can be either acute or chronic.〔 Most cheilitis is caused by exogenous factors such as dryness (chapping) and acute sun exposure.〔 Patch testing may identify allergens that cause cheilitis. ==Chapped lips== Chapped lips (also cheilitis simplex or common cheilitis) are characterized by cracking, fissuring, and peeling of the skin of the lips, and are one of the most common types of cheilitis.〔〔 While both lips may be affected, the lower lip is the most common site. There may also be burning or the formation of large, painful cracks when the lips are stretched. If chronic, cheilitis simplex can progress to crusting and bleeding.〔 Lip licking, biting, or rubbing habits are frequently involved.〔 Paradoxically, constant licking of the lips causes drying and irritation, and eventually the mucosa splits or cracks.〔 The lips have a greater tendency to dry out in cold, dry weather. Digestive enzymes present in saliva may also irritate the lips, and the evaporation of the water in saliva saps moisture from them.〔()〕 Some children have a habit of sucking and chewing on the lower lip, producing a combination of cheilitis and sharply demarcated perioral erythema (redness).〔 Treatment is usually successful with barrier lubricants, such as lip salve or Vaseline.〔 Medical grade (USP) lanolin accelerates repair of the lips,〔"Journal of the American Academy of Dermatology", Volume 56 , Issue 2 , Pages AB94 – AB94〕 and is used in some lip repair products. Some complementary and alternative medicine sources claim that nasal sebum can be used as a remedy.〔Tkac, Deborah (1990). The Doctor's Book of Home Remedies: Thousands of Tips and Techniques Anyone Can Use to Heal Everyday Health Problems (Hardcover). Rodale, 134. ISBN 0-87857-873-0.〕 Sometimes the term "cheilitis simplex" is used as a synonym for cheilitis generally, however, exfoliative cheilitis (discussed later) is also sometimes stated to be the equivalent of chapped lips. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cheilitis is inflammation of the lips. This inflammation may include the perioral skin (the skin around the mouth), the vermilion border, and/or the labial mucosa. The skin and the vermilion border are more commonly involved, as the mucosa is less affected by inflammatory and allergic reactions.It is a general term, and there are many recognized types and different causes. Cheilitis can be either acute or chronic. Most cheilitis is caused by exogenous factors such as dryness (chapping) and acute sun exposure. Patch testing may identify allergens that cause cheilitis.==Chapped lips==Chapped lips (also cheilitis simplex or common cheilitis) are characterized by cracking, fissuring, and peeling of the skin of the lips, and are one of the most common types of cheilitis. While both lips may be affected, the lower lip is the most common site. There may also be burning or the formation of large, painful cracks when the lips are stretched. If chronic, cheilitis simplex can progress to crusting and bleeding.Lip licking, biting, or rubbing habits are frequently involved. Paradoxically, constant licking of the lips causes drying and irritation, and eventually the mucosa splits or cracks. The lips have a greater tendency to dry out in cold, dry weather. Digestive enzymes present in saliva may also irritate the lips, and the evaporation of the water in saliva saps moisture from them.()Some children have a habit of sucking and chewing on the lower lip, producing a combination of cheilitis and sharply demarcated perioral erythema (redness). Treatment is usually successful with barrier lubricants, such as lip salve or Vaseline. Medical grade (USP) lanolin accelerates repair of the lips,"Journal of the American Academy of Dermatology", Volume 56 , Issue 2 , Pages AB94 – AB94 and is used in some lip repair products. Some complementary and alternative medicine sources claim that nasal sebum can be used as a remedy.Tkac, Deborah (1990). The Doctor's Book of Home Remedies: Thousands of Tips and Techniques Anyone Can Use to Heal Everyday Health Problems (Hardcover). Rodale, 134. ISBN 0-87857-873-0.Sometimes the term "cheilitis simplex" is used as a synonym for cheilitis generally, however, exfoliative cheilitis (discussed later) is also sometimes stated to be the equivalent of chapped lips.」の詳細全文を読む スポンサード リンク
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