The shot works. It is inexpensive, especially if you have medical insurance. No side affects. If you have alot of allergies and sinus pain you can also use Tylenol Sinus. This time of the year, being cold and all, your allergies will really act up on you, if you have bad allergies. I got some really bad sinus pain in my head and behind my eyes almost to the point of passing out from sinus congestion. I took Tylenol Sinus and it really helped.