The motor neuron
diseases (MNDs) are a group of progressive neurological disorders that destroy motor neurons, the cells that control essential voluntary muscle activity such as speaking, walking, breathing, and swallowing.In your mother's case it is very important to ascertain the degree of involvement and damage. Hence a careful examination and history taking details of investigations done, along with the opinion of a neurophysician is important before deciding the scope of homeopathic
medicines. Hence it would be better if you can personally visit a Homeopath and discuss the case.