Motor Neurone Disease - need help please

My father is dignoced with MND (ALS) 9 months back. Actual symptoms started 1.5 years ago. At start his fingers were numb, he complained about right hand. Then it gradually increased to right leg and now all limbs. Few months back he was able to walk using walker but now he is bedridden and we move him using wheelchair. Yes he still has little strength in his thies and back, with help he do efforts to stand on his legs but not for more that 10 secs. Now his condition is affecting his speech and throat. He started loosing control of his neck. We took him to two Orthopaedic, three Brain and Neurologist, one Ayurvedic doctor from reputed hospitals but same result, few months of medication but no confirm results. At first we were unaware of the disease but neurologist stated that it's kind of MND, and he will loose his muscles over the time which is right now happening. Currently we stopped all allopathy drugs as his legs started swelling and urination. Ayurvedic treatment is going on.