Sensation of wet legs and feet

My father has Parkinson's disease and a myriad of other health problems. Through the years he has broken both hips, both legs, and his back. He is currently 77 years old. He constantly believes that his feet and legs are wet, his shoes are full of water, and the floors are wet. He is obsessed with thinking that the toilet has overflowed or there is a water leak in the house which has caused the floors to be wet. Convincing him that he and the floors are dry is next to impossible. What can be causing this and how do we deal with it?
Also he claims that his urine burns his skin. He wears a diaper but still has the ability to go to the bathroom and rarely wets himself. But if he believes one drop of urine has hit his skin, he says it burns him horribly. My grandmother claimed he was potty trained by 6 months of age, and this was verified by his aunts. Is there such a condition where a person could be allergic or hyper-sensitive to their own urine?
Please help us with these concerns. These symptoms make it very difficult to take care of him!

[Christopher R Newey, DO]

Thanks for using the forum. I am happy to address your questions, and my answer will be based on the information you provided here. Please make sure you recognize that this forum is for educational purposes only, and it does not substitute for a formal office visit with a doctor.

Without the ability to examine and obtain a history, I can not tell you what the exact cause of the symptoms is. However I will try to provide you with some useful information.

Neuropsychiatric manifestations with parkinson’s disease is common. Psychosis (hallucinations and/or delusions that your father is experiencing) may be associated with the dopaminergic or anticholinergic medications or the degenerative disease itself. It would useful to discuss the medications with your father’s treating physician. If not already tried, you can further discuss with your father’s treating physician the utility of atypical antipsychotics, such as quetiapine, to treat these delusions and hallucinations.

Thank you for this opportunity to answer your questions, I hope you find the information I have provided useful, good luck.