“…The duration of the symptoms was mentioned in seven studies, with symptoms often lasting for several years 13,14,20,23,27–29 . Some patients had a pre‐existing vulvar disease of which the most prevalent diagnoses were: vulvar dermatitis, lichen sclerosus, lichen planus, lichen simplex chronicus, vulvodynia, candidiasis and psoriasis 14–16,18–21,23,25,27–29 …”