If it turns into an Emergency. Go to the ER. They have to treat you. They will bill you later and if you cant pay it will go on your credit score and it sucks but it is better than death. They also will do everything in their power to find all possible charitable organizations to cover your bill. No I do not condone doing it over sniffles but a true sinus infection can go bad real fast.
I think for under 10 bucks you can get a neti pot and rinse out your sinuses. I also have some things that could help as bp offered I also do not mind running something to you if you wanna PM me your addy. Im dead seriouse...not just offering to sound nice. 4951