The invention is a safety device (D) for nasal irrigation with a suitable liquid contained in a syringe (3) or another dispensing device, comprising an irrigation nozzle (2) suited to be at least partially inserted in the nasal cavity of the user and in turn comprising a duct (21) open at both ends (22, 23) and an external portion (24) integral with said duct (21) and suited to be at least partially inserted in the nasal cavity of the user.
