Alzheimer’s syndrome, clinically known as dementia, is mainly characterized by a decline in memory. For early memory loss, patients can be given oral drugs to nourish brain cells and improve brain cell metabolism, such as cytarabine, cerebroprotein hydrolysate tablets, and olanzapine, etc. As the disease progresses and worsens, patients will experience spatial cognitive decline, manifesting as not being able to find their homes when they go out, patients can be given oral acetylcholinesterase inhibitors, staphylococcus aureus or donepezil hydrochloride. As the disease progresses, patients with advanced disease may become unable to take care of themselves, unable to dress, unable to eat, malnourished, bedridden, and infected with pressure sores, etc. In this case, patients should be given active nutrition, anti-inflammatory treatment, indwelling gastric tube if necessary, and avoid pressure sores.