I am very sorry to know that three people in your family are facing this disease. May Allah grant them permission from this serious and bad disease. Yes, such a patient needs a lot of care and he should not be left alone, he should be kept happy all the time. Since there is no correct treatment for this disease or no correct treatment has been found yet, you and your family members must will be concerned and worried about them. Medical technology in Pakistan should use its ingenuity to discover a correct and complete cure for dementia as soon as possible. We pray to Allah that the right treatment for dementia will come to the whole world. Ameen 🤲😥