Further to previous postings about my mums stay in hospital she now has shingles and I'm wondering if the antiviral medication can exacerbate her dementia symptoms, does anyone know? Yesterday I went to see her and she was incoherent, couldn't put a sentence together, rambling about something - it was like this "I said..........I said .....then, nellen, she said.....and I said." Big gaps where she either lost track of what she was going to say. Or just couldn't remember it. She was twitching and sort of chewing, sucking her gums and her eyes weren't focusing much. She was also saying she's cold and had 4 blankets on her. I was very upset and got the sister to come and see her, she listened to her and thought it was the effect of the antiviral meds. She's not eating or drinking either, although I usually manage to get a small carton of plain yoghurt into her and as much water as she'll take. I don't know if this is a general decline in her dementia or a temporary set back Has anyone any experience of this? I'll be up to see her today again and see if she's improved or not.