My Dad had been very down and agitated for months. He was refusing personal care and had even lashed out at Care Home staff. He broke his hip several years ago and previous to that had suffered with back pain. He wasn't on any pain relief, and no longer has the ability to communicate if he was in pain to us or staff at the home. During a meeting with one of staff we were discussing if there could be anything at the root of his low mood and reluctance to bathe, change his clothes etc, and whether pain could be a cause? She advised me she had recently been on a course where a regular maximum daily dose of Paracetamol was administered, and in some cases this had resulted in very positive results in respect of Dementia sufferers mood. His Doctor agreed it was worth a try, and I am so pleased to say after 2 months he is like a different man. Obviously it has had no effect on his dementia, but his mood is so much better, he's smiling, allowing personal care and even thanking the staff for his "lovely baths"! Not sure how long it will last but seeing that smile again is priceless.