I recently discovered Sudafed as a nasal decongestant and I can't get off it.
I used to have really bad sleeps and feel so restless. After discovering Sudafed, I've had the best sleeps ever.
Does anyone know an alternative that doesn't have a rebound effect?
Google rebound congestion. Sudafed and all available nasal decongestant sprays like otrivin contain the same or similar ingredients. The only way is to stop using them or taper off. If you require them in the future do 3 days on, 3 days off. Other OTC medications that help with congestion but aren't addictive are steroid sprays ie rhinocort, flixonase, nasonex. Alternatively, saline rinses/sprays might help and you can use them as much as you like. Antihistamines might help and aren't addictive. Try polaramine or phenergan as they'll also make you drowsy and help you sleep.
If the taper off is too difficult, oral decongestants don't cause rebound congestion. Ask your pharmacist for some sudafed night tablets with pseudoephedrine and keep it on hand if you're having trouble tapering down. Don't get the OTC phenylephrine rubbish. Although the pseudoephedrine might make it hard to sleep, they have a sedative in them too. Seeing an ENT specialist might be worth considering if your sinus issues are bothering you too much.