Urticaire aquagénique localisée à l'eau de mer

A number of similar cases have been reported in the literature, enabling the characterisation of this particular form of aquagenic urticaria and allowing its principal characteristics to be defined. It appears to be dependent solely on the salt content of the water. It is reported by young women while bathing in seawater. The urticaria plaques show a predilection for the neck and lower part of the face, as in our case, as well as the shoulders on occasion. The efficacy of antihistamines is inconsistent. The prevalence of this as yet poorly known entity is doubtless underreported.