allergic rhinitis
"After taking this medication for approximately three weeks, I began to have daily migraines (usually I get them only once per months). I had migraines for 10 straight days before I went to my chiropracter and discussed what could be causing them. He suggested I stop the Omnaris for three or four days and see if it helped. Within 48 hours, my migraines ceased completely. Although I liked the fact that my nose didn't bleed with Omnaris (unlike all the other nasal sprays I have been on), the migraines were a worse side effect than the chronic sinus congestion."