I Have Been Receiving Rituxan Since 2007, In 2008 I

I have been receiving rituxan since 2007, in 2008 I started with a 2008, 4 chest x-rays, only thing found was atelectatsis. 2014 PFT: chronic asthmatic bronchitis. I have had at least 4 antibiotics. Nothing ever changed. This month in the hospital for COPD and rt basilar pneumonia. Since the 1st dose of solu Medrol, I have not had the cough. What is your opinion regarding the continuation of the rituxan? Right now I am on O2 24/7