How To Treat Parkinson S Disease Mediated Hallucination In A 71 Years Old Female While On Syndopa Plus 125 Mg,syndopa CR 250mg And Pramipex 1?

Hello Doctor, My mother suffers from Parkinson s disease since last 10-12 years and she is 71 years old nor. Since last 2-3 months the tremor has increased and she has hallucination. Also, she has pricking sensation on her legs, sometime in the chest, arms and scalp, especially in the night. Which she thinks are larva like insects crawling on the bed and she keeps on scratching and cleaning the bed to get rid of them. To the normal eye nothing is visible. Whether it can be due to hallucination? She is on Syndopa Plus 125 mg thrice a day and Syndopa CR 250 mg in the night along with Pramipex 1 thrice a day. Pls advise. Regards Xyz