I'm right there with you! I've had a KILLER headache for 3 days now
I took tylenol all day yesterday with no relief. If it's sinus pressure that's causing it, take some warm compresses and put them over your forehead/eyes. For non-sinus pressure, I've found cold works better to constrict the blood vessels. Kohl's had some aromatherapy masks that you can put in the fridge/freezer to make cold or put in the microwave to make warm....something like that would work well too. I hope you find some relief soon! It sucks, I know!