constant sinus drainage after lung transplant

I had a lung transplant (and liver) in late 2012. I had sinus surgery in December 2013. But I have constant mucus buildup and sinus drainage 24/7. I blow my nose several times a day and cough up stuff often that I know is from the sinus drainage. I do sinus rinses at least once a day, every day along with nasonex every day. I don't want this to cause an infection. I feel like this is getting worse and my ENT just says its CF and doesn't do anything about it (although he does clean out my sinuses when I see him). Does anyone have any remedies to decrease the amount of mucus buildup in my sinuses?
Source: Cystic Fibrosis Adults Forum - Category: Respiratory Medicine Authors: Tags: Adults Source Type: forums