Cheilitis - 唇炎
口红可能是一个重要原因。
Angular cheilitis ― 大多数情况下，伴有轻度感染，因此需要抗生素治疗。与疱疹感染不同，嘴唇上经常出现湿疹。
References
这种疾病可以单独出现，也可以作为某些更广泛的健康问题（例如维生素 B12 或铁水平低引起的贫血）或局部感染的一部分出现（ herpes, oral candidiasis ）。唇炎也可能是由于对刺激性或过敏性物质的反应而发生，或者可能由阳光 (actinic cheilitis) 或某些药物（尤其是类维生素A）引发。已有多种形式的唇炎报道 (angular, contact (allergic and irritant) , actinic, glandular, granulomatous, exfoliative and plasma cell cheilitis) 。
The disease may appear as an isolated condition or as part of certain systemic diseases/conditions (such as anemia due to vitamin B12 or iron deficiency) or local infections (e.g., herpes and oral candidiasis). Cheilitis can also be a symptom of a contact reaction to an irritant or allergen, or may be provoked by sun exposure (actinic cheilitis) or drug intake, especially retinoids. Generally, the forms most commonly reported in the literature are angular, contact (allergic and irritant), actinic, glandular, granulomatous, exfoliative and plasma cell cheilitis.
The disease may appear as an isolated condition or as part of certain systemic diseases/conditions (such as anemia due to vitamin B12 or iron deficiency) or local infections (e.g., herpes and oral candidiasis). Cheilitis can also be a symptom of a contact reaction to an irritant or allergen, or may be provoked by sun exposure (actinic cheilitis) or drug intake, especially retinoids. Generally, the forms most commonly reported in the literature are angular, contact (allergic and irritant), actinic, glandular, granulomatous, exfoliative and plasma cell cheilitis.
○ 光化性唇炎
主要是由阳光引起的，影响白人。从长远来看，这种情况有可能发展成鳞状细胞癌。
○ 过敏性唇炎
它分为内源性（由于个体的固有特征）和外源性（由外部因素引起）。内源性湿疹性唇炎的主要原因是特应性唇炎，外源性湿疹性唇炎的主要原因是刺激性接触性唇炎（例如舔唇习惯引起的）和过敏性接触性唇炎。
过敏性接触性唇炎最常见的原因是唇部化妆品，包括口红和润唇膏，其次是牙膏。轻微的接触，例如亲吻涂口红的人，就足以引起接触性唇炎。对金属、木材或其他成分过敏会导致音乐家，尤其是木管乐器和铜管乐器演奏者的唇炎反应，例如所谓的“单簧管演奏家唇炎”或“长笛演奏家唇炎”。
○ 治疗 - 非处方药
如果只出现在上唇，可能是由于长期过度阳光照射造成的。避免阳光照射并定期去看医生。避免使用口红或润唇膏成分，因为它们会引起过敏。使用非处方类固醇霜和服用非处方抗组胺药会有帮助。
#Hydrocortisone cream
#Cetirizine [Zytec]
#Diphenhydramine [Benadryl]
#LevoCetirizine [Xyzal]
#Fexofenadine [Allegra]
#Loratadine [Claritin]