Investigation of skincare habits and possible rosacea triggers of patients with rosacea: A prospective case-control study.

Skincare is a part of rosacea treatment; patients benefit from complementary dermo-cosmetic care as well as medical treatments. Some skincare habits are known to trigger and exacerbate rosacea, but there are very few epidemiological studies on this matter. A total of 200 people, including 100 patients with rosacea and 100 controls, were included in the study. We questioned the methods used by the participants in daily facial cleansing. Sun and heat exposure, makeup habits, the history of the use of topical steroids, and outdoor working status were noted. A dermoscopic examination, a non-invasive and valuable method to evaluate the presence and severity of Demodex, was performed. We evaluated 30% of our rosacea patients as erythematotelangiectatic rosacea, 13% as papulopustular rosacea, and 57% of our patients had mixed type, which could not be distinguished from one of these subtypes. In the case group, the proportion of people who used daily facial cleansers and daily soaps was lower than in the control group, while the proportion of those who cleaned their face with only water and those who used facial cleansers less frequently was higher (p<0.001). In the case group, while the rate of daily make-up and use of make-up products was lower (p=0.001, p<0.001, respectively), the rate of not wearing make-up was higher (p=0.001). The history of hot bath use was higher in the case group than in the control group (p=0.011). We found a significant relationship between the severity of plaque and dry appearance and the increase in Demodex density (p=0.007, p<0.001, respectively). We recommend that patients with rosacea clean their faces daily with soap or facial cleansers and not take a bath with very hot water. Patients should be evaluated for increased Demodex mites, especially if skin dryness is accompanied.

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No conflict of interest was declared by the authors.