No abstract

Patients with OADs and UCDs show increased frequencies of mental disability and behavioural/emotional problems. Profiles of behavioural/emotional problems were similar to epidemiological data. Intellectual disability and behavioural/emotional problems were strongly associated. Patients' HRQoL was in the normal range, possibly compensated by coping strategies of their families. Diagnostics and clinical care of OAD/UCD patients should be improved regarding behavioural/emotional, intellectual and quality of life aspects.

Thomas has received funding for congress attendance from Sanofi. D. Jamiolkowski has received funding for congress attendance from Stallergenes. E. Steveling-Klein has a transfer of value agreement with Bencard and has received funding for congress attendance from ALK. K. S. Hofmeier has received funding from Allergopharma, Sanofi-Aventis, Shire, and Novartis. K. Hartmann has received research funding from Euroimmun and consultancy or lecture fees from Allergopharma, ALK-Abell o, Blueprint, Deciphera, Menarini, Novartis, and Takeda. The rest of the authors declare that they have no relevant conflicts of interest.

Summary Hair cosmetics such as shampoos, hair dyes, bleaching agents or hair straightening creams contain frequent contact allergens. These can lead to allergic contact dermatitis especially in hairdressers, but also in their customers and in others who use hair products at home. While hairdressers suffer mainly from hand dermatitis, in customers and home‐users, dermatitis primarily affects the head, neck and face. In this mini‐review, we propose a diagnostic algorithm in two steps, based on patch testing, that can be used for the assessment of suspected hair product‐induced contact dermatitis. In a first step, we recommend testing the German Contact Allergy Group (DKG) standard series, DKG ointment series, DKG preservative series, DKG hairdresser series, DKG fragrance series as well as (especially in hairdressers) the DKG rubber series. In a second step, if the culprit allergen cannot be identified with the help of the standardized test series and there is a well‐founded suspicion, testing the patient’s own products, such as shampoos, hair sprays and hair dyes, is recommended.