The nasal douche (10) according to the invention has a valve (32), a container part (12) and a cap part (24), wherein the container part (12) serves to receive irrigation liquid (14) and carries the cap part (24). The cap part (24) has a nose attachment (62) with an outlet opening (64) for the irrigation liquid (14) connected fluidically to an interior (11) of the container part (12) via a discharge channel (60), wherein the nose attachment (62) is intended to be attached to a nostril (70, 92) of the user. According to the invention, the container part (12) or the cap part (24) is assigned a mouthpiece (44) for controlling the valve (32), wherein the valve (32) is closed in a rest position and the flow of irrigation liquid (14) out through the nose attachment (62) is thus suppressed, and wherein the valve (32) can be brought to an open position, under the action of respiratory air when the user blows into the mouthpiece (44), and irrigation liquid (14) thus flows out through the nose attachment (62), wherein respiratory air or ambient air flows into the container part (12) to allow the outward flow.
