The invention relates to an aqueous ionic solution, particularly for nasal use, including: at least one seawater solution having an osmolality of between 290 mOsm/kg and 400 mOsm/kg in a weight proportion of between about 30 and 98 wt % relative to the total weight of the composition； at least one cationic phospholipid of natural origin in a weight proportion of between about 0.01 and 5 wt % relative to the total weight of the composition； and at least one compound, which is originally immiscible with said seawater solution, in a weight proportion of between 0.01 and 10 wt % relative to the total weight of the composition.
