migraine
"Given two of the 5 mg in nasal  spray form ( at neurologist for my Rxs that control my 20 year history of cervical dystonia).  Was on my second day of latest sinus headache the neuros always insist are migraines. Had them since I was a small child and they are sinus related.  
Spray did nothing.  I got rid of it by eating   hot mashed potatoes with three or more tablespoons of crushed hot pepper flakes. That was over an hour and a half of the non effective 5 mg Zomig. Hot spicy food worked instantly. 
Happy for those it works for...but I've often conquered mine with two gel cap ibuprofen.  And or a damp hand towel in a plastic grocery bag heated in microwave and put on forehead.  Mine are more stubborn over 50 years. Try other things 1st"