Nasal Congestion - Over the counter meds?

Some of the text below comes from an post back in 2006, so it seems I am not "alone".  I provide the symptom explanation as the cause of my question about over-the-counter (non-prescription) anti-congestion medications that any have found helpful.  I have tried several (will list if this post goes anywhere) with minimal benefit.

Problem:  I've experiencing chronic nasal congestion, worse this spring than usual, especially when I lie flat on my bed, but also worse in the afternoon than during earlier part of the day.  I noticed that my nasal congestion when I wake up is on the side where I slept (left or right) but gradually disappear when I stand up, or shifts sides as I turn over to lay on the other side (left or right).  It's really making my sleeping habit difficult and waking up in the morning with this discomfort is really annoying and it makes my day start on a bad note. I have discussed with my Primary Care and Cardiologist.  Both say I can use over the counter tablets but should "watch" to be sure they do not worsen my atrial fibrillation condition.  I also use a nose spray, but try to limit that to once a day, before bed time.  The 12 hour type give quick relief and last for at least a few hours.

[Jerry_NJ]

I also posted my allergy concern on the Heart Rhythm Forum as I was also looking for inputs on the possible interactions of nasal medications on my atrial fibrillation heart condition.

I found the help obtained there to valuable, so I copy the link to that information below for anyone on this forum interesting in this subject.

http://www.medhelp.org/posts/Heart-Rhythm/Allergy-time--what-to-do-about-nasal-congestion/show/1514436

[Dr Rajput]

Hi, welcome to the forum, Your symptoms are suggestive of allergic rhinitis which is exaggerated or precipitated during cold season or timing. This condition is sometimes associated with asthma.

The triggering factors like dust, fog, pollens etc. can cause the precipitation of these symptoms. A careful nasal examination, Allergen-specific testing includes Skin testing, Serum tests for allergy, Allergen challenge and as well as Evaluation for concurrent conditions like Sinusitis and Asthma is necessary and it directs further steps for management. You need to avoid the exposure by covering nose with a cloth, whenever you are exposed to allergen like dust.

Now as far as medication are concerned. Avoid anti histaminics like terfenadine and astemizole, which is associated with heart problems and may worsen existing arrythmias. Drugs like loratadine, cetirizine, and fexofenadine are not associated with rhythm changes and safely can be used but against prescription. I suggest you to consult ENT specialist and cardio physician. Take care and regards.