Family dynamics play a major role in itch related dermatoses. The aim of the study was to evaluate the effectiveness of family constellation seminars (FCS) in the decrease of itch in atopic dermatitis (AD) and psoriasis. Thirty‐one adult patients with chronic itch (16 with AD and 15 with psoriasis) were allocated to intervention group (FCS + G) and control group (CG). Patients from FCS + G have participated in a series of four FCS for 3 months. During the study period, all patients used only emollients. Itch was evaluated by 27‐item questionnaire and skin condition was evaluated by SCORAD and PASI. The severity of itch in FCS + G decreased (Median; (25%;75%)) from 8.42 (6.57;11.92) initially to 4.78 (1.36;9.14); p < .01 after 1 month and (0.61 (0;6.66); p < .001) after 9 months after the psychological intervention with no significant changes in the CG. In the patients with AD in the FCS + G, SCORAD decreased (21.5 (14.4;40); 14.1 (7.3;15.5) p < .05; 7.2 (3.6;11); p < .05). In the FCS + G, itch decreased both in patients with AD and psoriasis, with less significant visible changes of skin in patients with psoriasis. Participation in FCS in a series of four seminars has high effect (r = .53) on reduction of itch and high effect (r = .74) on improvement of AD signs with lower effect on skin condition in patients with psoriasis for 4 months. Positive effect of FCS gradually increases during at least 9 months. Further studies for understanding FCS influence on the patients with itch are needed.

Chronic itch is a complex psychophysiological sensation, which can severely affect the quality of life in patients with atopic dermatitis and psoriasis. Itch depends on the irritation of receptors in the skin and the processing of sensory information in the central nervous system. Severe itch leads to activation and later on to disruption of the stress response, resulting in disorders of skin repair, functional and microstructural changes in the areas of the central nervous system that are responsible for the perception of itch. Psychosocial stress can be an essential factor, activating neurohumoral mechanisms which lead to increased itch and scratch, exacerbating skin damage. Patients with chronic itch often have sleep disorders, increased irritability, and depletion of the nervous system. They are characterized by disrupting social relationships, high incidence of anxiety, depressive disorders, and suicidal tendencies. Psychological methods of intervention can effectively influence various mechanisms in the pathogenesis of itch and scratch and improve social functioning in patients with chronic dermatological itch. In this mini-review, we discuss family constellation seminars as an effective method of psychological intervention that can reduce the intensity of itch, and improve sleep and performance in patients with atopic dermatitis and psoriasis. This method is insufficiently described in previous reviews of psychological interventions in atopic dermatitis and psoriasis patients. The positive impact of family constellations seminars in patients with chronic dermatological itch may be related to reducing stress by improving understanding of the family situation, appropriate management of family secrets, and enhancing interactions with the social environment.

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