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Primary burning mouth syndrome is a term used for chronic oral mucosal pain with no identifiable organic cause. The aim of the study was to evaluate the usefulness of a psychiatric intervention for treating burning mouth syndrome based on a joint consultation with a psychiatrist and a dermatologist. The study was proposed to all patients who visited this consultation group between 2001 and 2017 for the treatment of primary burning mouth syndrome. The patients answered a questionnaire that was administered via mail. Of the 57 patients diagnosed with primary burning mouth syndrome, 38 were included. Seven patients (18.4%) no longer had pain; 8 (21.1%) estimated that the pain had decreased by greater than 50%; 11 (28.9%) estimated the decrease at between 30 and 50%, and 12 (31.6%) estimated a less than 30% decrease. Only 14 patients (36.8%) remained under treatment with antidepressants, as compared to 63.2% before the psychiatric intervention. This psychiatric intervention could be considered a valuable tool in the global burning mouth syndrome treatment strategy.

Acne is a common disease among young people, which could have a serious impact on quality of life. Based on a survey using the quotas method on a large sample of the French population, we studied the impact of acne on feelings of stress, fatigue upon waking, sleep disorders and sexual activity. We did not establish any relationship to sleep disorders, but clearly ascertained that people with acne (n = 1,375) feel more stressed and have less sexual intercourse. Hence, 18% of people from acne group declared to be stressed every day (13.9% in control group) and 37.5% had no sexual intercourse (20.4% in control group; n = 891). To our knowledge, this is the first study to show that fatigue upon waking is strongly associated with the presence of acne (65.4% versus 58.4%). This study emphasises the fact that acne could have a deep resounding impact on the lives of people suffering from the disease.

Chronic pruritus (CP) can occur in the absence of skin diseases, and may be secondary to various causes. The aim of this study was to retrospectively analyse the causes of CP without skin disease in a cohort of patients from the dermatology department, including all patients hospitalized for management of their CP between 2008 and 2018. A total of 197 patients with CP without skin disease were included, mean age 66.7 years, 50.8% men. The main causes identified were psychogenic pruritus (41.1% of patients), neuropathic (36.5%), endocrine (12.2%), haematological (9.6%) and iatrogenic (7.1%) causes. The cause was unknown in 20.8% of patients. Total percent is more than 100 because some patients had several etiologies. Only one aetiology of CP was identified in most patients (69.5%), and 2 aetiologies (in 18.3%) or more (in 12.2%). Concerning symptomatic treatments, emollients were prescribed for 40.6% of patients and topical steroids for 20.3%. Among systemic treatments, gabapentinoids (33%), antidepressants (27.4%) and antihistamines (25.3%) were prescribed. The efficacy of these treatments was rarely complete.