I’ve been addicted to nasal sprays since I was 18 and have used them throughout the day every day for 25 years.
The only one that works for me these days is Sudafed nasal spray. I have about 4 bottles of it on the go right now. Bloody shame as I go through two bottles a week and its the most bloody expensive!!!
I had a similar problem. I ended it by taking pseudoephedrine (sudafed tablets) for a couple of weeks which resulted in my sinuses not needing the nasal spray to breath. Obviously you’re only supposed to take them for a few days continuously but I thought it was worth the risk. Not saying you should do the same, but it worked for me. Good luck, I know what a bitch it is.
I was exactly the same for years,totally reliant upon decongestants and costing me a small fortune.Managed to get my GP to prescribe Fluticasone,took it over a few weeks and it`s completely cured my problem.Havent used a decongestant in the last year since.