That is what happens to me. The sinus headaches turn into migraines. I have to take Maxalt sometimes everyday. The congestion seems to be getting worse. Do you have to take it everyday, or can you take it everyday. I see that it is a triptan drug like Maxalt. You are the first person I have heard say that there sinus headache turns into a migraine. I was afraid taking the Maxalt so much was giving me a rebound migraine.