Can LBD delusions and hallucinations disappear for months and then return?

My mother was diag by a neurologist with Lewy Bodies Dementia 3 years ago. Definite paranoia causing her to live in fear, and hallucinations which also cause her fear. Short term memory loss. She lives alone w/family nearby and plenty of visitors. Plus a NEST camera (w/her approval) where we can keep an eye on her. She believes these delusions and hallucinations to be very real, of course. And it’s heartbreaking. To help her feel safe, she went to my brothers for 2 months. No hallucinations or delusions. Back home, she’s starting to have them again. Can that truly happen with LBD that they disappear for such a long period of time?