A study of Erythematous Facial Dermatoses in Thai Dermatologic Patients in a University Hospital
Waranya Boonchai MD 1 , Pranee Kasemsarn MD 1 , Pitchaya Maneeprasopchoke MD 1 , Onjuta Chayangsu MD 1 , Sumanas Bunyaratavej MD 1
Affiliation : 1 Contact dermatitis clinic, Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
Background : Erythematous facial dermatoses is a common dermatological condition caused by a variety of skin disorders and
underlying systemic diseases . Little is known about this disorder in Asian skin types .
Objective : To examine clinical presentation, investigation, final diagnoses, treatments and comorbidities in Thai patients with erythematous facial dermatoses condition .
Materials and Methods : A prospective study of 100 patients with red face attended the Dermatology outpatient clinic in a University Hospital .
Results : There were 100 patients with erythematous facial dermatoses . The mean age was 36 . 8±12 . 6 years; 83 % were female . The mean symptom duration was 2 . 5±3 . 3 years . Precipitating factors were exposure to ultraviolet light and heat . The most common complaint was itching . The most frequent causes of erythematous facial dermatoses were demodicosis ( 42 %) , allergic contact dermatitis ( 30 %) , seborrheic dermatitis ( 26 %) and rosacea ( 12 %). Demodicosis and allergic contact dermatitis were significantly associated ( p = 0 . 002 ).
Conclusion : Erythematous facial dermatoses can have several causes in the same patient . We recommend the Demodex density test and patch testing are undertaken to allow the correct diagnosis to be made and treatment given.
Keywords : Erythematous facial dermatoses; Asian skin types; Demodicosis; Allergic contact dermatitis; Seborrheic dermatitis; Rosacea
