I strongly suggest you find a doctor who can administer this drug to the virus. My vocal cords were very bad and I could bearly speak for over 6 months. After my first injection I have 90% of my voice back after 5 days. I avoided laser treatment and I am so happy now that I did.
If you cannot get it in your country or your doctor says its not available, find a different doctor! I have a short video on youtube called "Recurrent Respiratory Papillomatosis Cidofovir" if you are interested in watching.