What to do for a runny nose in someone with dementia?

See below: Medical advice should be obtained from the person's doctor. Once medical recommendations are obtained, someone with dementia may need more help carrying them out than one without.

Practical question: Many medications cause anticholinergic side effects, which can temporarily worsen cognition, but an upper respiratory tract infection needs some help. Could try nasal rinses, and perhaps use a nasal decongestant spray, which would have less systemic effect. If sinusitis develops, then an antibiotic will be necessary.