Duck itch
From Openwaterpedia
noun - Duck itch, otherwise known as swimmer's itch, lake itch or sunbather's eruption, is an allergic reaction on the skin caused by a host of other marine life among open water swimmers.
noun - Duck itch, otherwise known as swimmer's itch, lake itch or sunbather's eruption, is an allergic reaction on the skin caused by a host of other marine life among open water swimmers.