Unfortunately, alzheimers disease is very devastating, not only to the person who has been diagnosed, but to the family as well. I, specialize in the care of people with alzheimers. Both my parents were diagnosed and i'm still dealing with my Dad, who now only recognizes me by touch. My Mom passed away last November.
one of the most important things to remember is that communication is very important. You have to learn to tap into where that person is mentally right now and communicate on that level. For example, my Father is hearing and vision impaired which makes communication very difficult. I, used to rub the top of my Dad's head as a kid and he remembers that. That's what I, do when I, arrive to see him and then he knows it's me.
The main thing is to not feel guilty when faced with the decision of having to place a loved one in a facility. There are people who have special training in this area and will give your loved one the care that is required, so that the time you spend will be quality time and not time spent in total frustration.
There are many ways to communicate and if anyone would like any further information, feel free to contact me and i'll give you as much assistance as I, possibly can.
Prayer and patience go a looooonnnnnggggg way, when faced with this disease.....