Severe Headache/Migraine. A situation.

I have been having a severe headache for the past 3 days. It was especially bad last night. It is hurting at the temples and at the hollow of my eyes, as well as the base of my head above my neck. There is a throbbing pain and some changes in visual sensation. I have sinusitis so initially I thought it was purely a sinus problem, by even steaming didn't solve the problem. Headache medication such as Dart and Vasograin had little to no effect. Enzoflam medicine seemed to work better, but the pain returns few hours after taking this medication. There is no accompanying fever, congestion or any other symptoms. I am pretty certain it is a migraine problem. Just was some advice on which medication would work best in such a situation.