My mother is diagnosed with Parkinson's disease 9 months back. The symptoms she faced initial days was back fall and balance problem while walking and standing. She has been prescribed with few medicines and physiotherapy. But now a days since past 3 months she is facing serious problem in speaking. All the time she struggles to speak as her throat not use to clear. Now a days she stopped singing which she was very fond of and she also speaks less. Can any one suggest what she can do to improve her speech? Mostly her throat use not use to very clear so she struggles in talking.