From April 5th to 12th, 2020, between the 25th and 32nd days after the first COVID-19 case in Turkey, a self-administered online questionnaire (SurveyMonkey®) consisting of 90 questions was conducted for doctors and nurses that voluntarily participated in the study. We aimed to reduce the risk of bias in the questions posed to the participants by carrying out this retrospective study in the early phase of the COVID-19 outbreak. The first part of the questionnaire examined subjects such as demographic characteristics, occupational and institutional information, medical history,

We aim to evaluate the change in the diagnostic spectrum in dermatology outpatient applications compared to before COVID‐19. All patients were enrolled from the Department of Dermatology between February 12 and May 8, 2020, the duration of 4 weeks before COVID‐19 and 8 weeks after were analyzed in three parts consisting of 4 weeks. Data obtained from the database such as age, gender, diagnoses were anonymized. Repeated applications with the same diagnosis in 10 days after the first presentation were ignored. Compared to the pre‐outbreak, there was a 3.5‐fold decrease in dermatology applications in the first month after COVID‐19 and an 8.8‐fold in the second month. We found a significant increase in the frequency of diagnoses such as generalized pruritus, pityriasis rosea, alopecia areata, bacterial skin/mucosa diseases, and zona zoster after COVID‐19. The frequency declined in diseases such as verruca vulgaris, hyperpigmentation, skin tag, melanocytic nevus, and seborrheic keratosis/solar lentigo. It has been found that the frequencies of most diseases, including acne (⁓25% of patients), did not change. We think that many factors, such as affecting the quality of life, risk perception, increased stress burden may cause a change in the diagnostic distribution of the dermatology applications.

Coronavirus Disease-2019 (COVID-19) spread rapidly worldwide in about three months and was declared a pandemic by the World Health Organization on March 11, 2020. It was reported that more than 80 million people had been infected, and more than 1.8 million patients had died of COVID-19 by the end of December 2020. 1 Due to the rapid spread and fatal course of the infection, the search

Recurrent oral ulcers (ROUs) are the most common disorder of the oral cavity in the community. Although many etiological causes such as trauma, genetic, nutritional, infectious, immune, drug-mediated, rheumatological, endocrinological have a role, it is commonly idiopathic, known as recurrent aphthous stomatitis (RAS). 1-3 Indeed, RAS has accounted for 25% of oral ulcers in adults and 40% in children. 2 The most challenging issue for the clinician to deal with in the diagnosis is to distinguish whether oral ulcers are associated with primarily Behçet's disease (BD) and other systemic inflammatory processes such as inflammatory bowel diseases and connective