A close-fitting garment often worn while surfing or during other water sports under a wetsuit to prevent chafing and provide UV protection and in some cases extra warmth.

plural of reef rash

(colloquial) skin and bone injury caused by abrasion with road surfaces

(medicine) Itchy, swollen, red areas of the skin which can appear quickly in response to an allergen or due to other conditions.

(US) Any of various skin rashes in the diaper area.

(Britain) A generic term applied to various skin rashes in the diaper area.

plural of nappy rash

miliaria

(medicine, dated) A form of scarlet fever characterized by ulcerated or putrid sore throat.

nappy rash