I found inhaling the spray into my nostril took a bit more coordination and concentration than I obviously have, which is why I started using the swabs.
Maybe, that swimming pool is an analogy, since I couldn't swim without nose plugs ... maybe we should do a survey <g> ... or get a grant to study it! LOL nahhh ... I won't go there <g>
anyway, when I was first diagnosed with all this trouble, I tried the water thing into the nose - - DRs receptionist swore by it ... it just didn't work for me.
Maybe we ought to study more about what it is that causes it to work ... because I know it works! hence, in my mind, it is at least an option.