Can a migraine type headache be cured by sinus medication?  You say that a sinus headache only comes from having a sinus infection.  How do you know that it is a sinus INFECTION?  I have had headaches that have been cured by taking sinus medication. If it wasn't a sinus headache, how can I tell that it was a SINUS headache caused by an infection?

I can tell you sinus headaches can be very real!  The key in distinguishing what your problem is, if you think you are having recurring sinus problems is to see a good ENT.  Chances are if you have no sinus abnormalities, or have no issues such as year-round allergies, it's probably migraines causing the problems.  I had real sinus abnormalities.. both a deviated septum and something called concha bullosa (sp?) where the middle turbinates overgrow.  The littlest bit of inflammation caused them to swell enough to back everything up and give me horrible pressure between the eyes / nose / forehead.  It wasn't an infection, but enough to give me horrible headaches.  I got sinus surgery for it and it's the best thing I did!  I still get migraines of course, but that wouldn't have helped at all for that.  The other thing I found to distinguish the two is what worked for the headache.  For me, moist heat and a good decongestant worked for the sinuses.. no go for the migraines!  My migraines need cold packs and excedrin for the mild ones/ Relpax for the big ones.  Plus, if you press in and around your sinuses on your face, if it's a migraine you won't get any discomfort. 

thanks for the link Nancy!  I'm sure that some of what I thought was sinus headaches was migraines, especially when the pain is in the forehead and seems to wrap around your head.  When my sinuses flared though, the pain was often very different. The pain would center on the bridge of the nose and go up between my eyes and down to my cheeks.. there was no throbbing and getting up and down didn't make any change in the level of the pain.  My ENT said that this description was what made him think I had the concha bullosa diagnosis.  I had been to an ENT before who looked at CTs and missed it, but my current ENT went back to my CTs and sure enough that's what I had.  I have had complete relief of these headaches since my surgery.  So while "rare", I would argue that that doesn't mean they CAN'T happen.  My advice would be to anyone who thinks they have sinus headaches, don't diagnose yourself but see an ENT.  If you don't have any abnormalities of your sinuses, I would completely agree that it would be rare to have a sinus headache and focus on treating for migraines.