I see you are looking for answers, to be enabled to assist your husband... I'm striving to put the fruits of my research into a blog. Although it is a work in progress, I have addressed numerous symptoms, non-prescription therapies, parkinsonisms, clinical studies, recipes, strategies, tools, words of encouragement... and you can go to the index where most of my posts are linked, to find what you want to see more about. I have linked the index topics to my posts about them, to simplify your quest for info.
I'm currently in a 30 day Parkinson's study, and I am putting updates on it, in my blog also. https://silverliningsandparkinsons.home.blog/20... Tells the purpose of the study