Parkinson disease

My father is suffering from parkinsons disease since 6years.He is 75now.it first appeared as slight tremors in hand with slurred speech. The neurologist said it was parkinsons. He had been an active and independent person all his life. It was difficult for him to accept this disease. It is not a life threatening disease but certainly a debilitating disease which slowly kills your self confidence and esteem.

My father is still going strong at 75.he doesn't want to be defeated by physical inability. A physiotherapist comes 4days for his body exercises, speech and facial exercises. He makes his own tea till today. His will power is strong. But recently he has developed certain symptoms like lack of bladder control especially at night, frequent urination at night, seeing some illusions and probably hallucinations. Some days he is perfect but on some days he is low. He takes medicines like syndopa plus, pramiprex, rasalect1mg, evion 400mgand adcapone. The neurologist said that these symptoms will gradually arise and there is nothing much that we can do about it. I have read that parkinsons is a disease that needs individualised treatment so we have maintained a renowned neurologist of Kolkata for his treatment and consultation. Can you suggest something that can make his life better... Coz every parkinsons patient feels why me??? If I didn't have this disease, I would have had a better life.