My sister (this patient) is 56 and has early onset alzheimers. she has flu-like symptoms that im treating with mucinex er dm, and tylenol/advil. can i add benadryl? and does this type of illness tend to exacerbate eoa?

Therapy: A few days of Benadryl should not be and problem. No link between Benadryl and antihistamines. https://www.clinicalcorrelations.org/2013/05/22/clinical-misinformation-the-case-of-benadryl-causing-dementia/ Alzheimer's is a neuroinflammatory condition. The vast majority of illness produces some type of inflammation and can make problem progress.