My doctor prescribed Singulair for my allergies and asthma last m...

My doctor prescribed Singulair for my allergies and asthma last month. Immediately I began to have headaches from it - not terrible, but just there. After about 3 weeks on it, I began to have ringing in the ears also. Again, not bad, but just there. I decided to stop the Singulair (even though it was the first thing that really worked for me) on a Thursday night and the next morning I woke up with a horrible really loud noise in my left ear like a piece of heavy equipment and dizziness! I went to urgent care that Sunday and they put me on a round of prednisone - didn't work at all. I went back to my allergy doctor and she is VERY concerned, as I have "significant hearing loss" in my left ear. She referred me to a different doctor where I have to go today for a procedure to have my eardrum slit open and steroids injected behind it. I am beyond upset. This is ridiculous!