Yes - afrin will make congestion worse. Its called 'rebound' congestion. It is addictive as well.
Look on my webpage under archive - I have a clip of Dr. Schulze and I discussing how he blasts a bad sinus infection. www.bobmantz.com
Stop dairy.
Start cayenne.
Get a waterpik and a grossan adapter.
Air filter and proper humidity.
For shorterm daytime use: www.drchristopher.isbrilliant.com
choose Dr. Christopher's Cap Formulas from the drop down menu and purchase D.C. SINUS PLUS FORM VEGCAP100. HURRY - it is great stuff.