The only experience I have with this is when my dad was in his last days, so I'm not sure it will help with a person who is not experiencing complete breathing failure in addition to pneumonia. Dad had the beginnings of pneumonia in one lung, and the pulmonologist at the hospital chose to put him on oxygen interspersed with the bi-pap machine in an attempt to get his lungs functioning again. My concern at the time was whether the pulmonologist also knew enough about the involvement of ALS in a patient. A neurologist (unfortunately one my dad di not trust) was called in to help with this issue, but it really would have been better to have a specialist in ALS involved. My dad's doctor was away on vacation. Anyway, I think this question might be best answered by a pulmonologist and an ALS specialist working together to resolve whatever difficulties a PALS is experiencing. That way they can put their knowledge and experience together. It appears to me that doctors often work in isolation, afraid to tread in each other's territory rather than being collaborative. I hope you can come up with a workable solution and are able to recover from the pneumonia.