My mom is in the beginning stage of Dementia. She had been taking her medicine regularly but now she obsesses over it by constantly counting her pills. I started using one of those weekly pill containers with days of the week/time of day and she still obsess over it. One day I came home and she had taken 2 days of her morning pills. I have taken the pill bottles and keep them hid but I'm wondering now if I should just remove the weekly pill container also.
I would carefully watch how she's doing in other areas too. If she's obsessing, worried, it may due to the changes she's experiencing. With my cousin, these mental changes scared her and made her want someone to be with her at all times. I think that's why she agreed to try Assisted Living. She loved her independence too, but the fear and confusion became too much. She felt safer when she had someone caring for her around the clock.
If it's the obsessive part that's bothering her then I agree with the chart and stickers idea - she can keep checking that over and no harm done.