My mom has dementia and is seeing bugs. Has anyone experienced this and is there anything that can be done for this?

Thank you! We actually have an appointment tomorrow . I'm praying that it is a UTI and not her dementia.

Katsue, i agree with 97yroldmon's posting about urinary tract infections.

My Dad was seeing ants on the wall and in his food. Right away I thought it could be a UTI, and sure enough it was. After a couple of days being on antibiotics the ants started to disappear.

Yes
Many things can cause hallucinations. Start with a physical. She may be dehydrated, have a UTI, be having side effects from medications.
She may need to see a geriatric psychiatrist and/or a geriatric primary.
If this is new behavior, please know that a Urinary Tract Infection can cause the problem and usually requires an antibiotic to resolve.