Why do some/most nasal decongestants create feedback loops of congestion and (more importantly for me) how can one get over the withdrawal effects created by it's excessive use, and in what timeframe?

For context: my mother said that my father has used these decongestants regularly for as long as she has known him. He passed this habit onto me when I was young, originally with Afrin, then Narix. Given there is a recommendation to not use these decongestants for extensive periods of time and apparently a rebound effect and syndrome called rhinitis medicamentosa comes from ditching it's use after said long periods, my mother decided using it like this is unhealthy and thus cut my use of it for the day, and given this stuff is cited in Wikipedia and a fair number of news/medical articles, it seems legitimate, and thus I agreed.

After that, my skin is more prone to goosebumps and being overly sensitive, my eyes are watering more, my throat feels more scratchy (although I already woke up with that, before my mother made this decision) my nose is running way more than it used to.
Can I blame withdrawal on this?
What happened to me?
How long does this last?

And is this site really where I should turn to to try to find out?