Yup! And this is why I no longer use nasal sprays. I found it developed after using one for about 5 days (all ok at that point), but then my GP suggested I switch to another and I used that for about another 5 days... and even though I changed, it was just too long.

In the end, I basically weaned off the nasal spray very slowly - I'd give things a small squirt when it was just getting too much, and just made sure I'd go longer and longer in between sprays, and I was fine eventually.

However, I did find that after that, I developed rebound congestion quicker and quicker each time I had to use a nasal spray, so I just don't bother now and stick with fess.

I suspect the cold turkey approach would be better (what I did on the other times), then it only lasted for a day or two, but that first time, I think it went for about a week.

I hope it clears quickly - it's just the worst feeling!

BW