Is it necessary to inform a mother suffering from paranoia or obsessive-compulsive disorder about the reality of her illness, and what should be done regarding her changing behavior and sudden desire to go out?

Firstly, regarding informing your mother of her illness, her personality must be assessed to determine whether she will respond to treatment after being informed or resist it. You should also consult the doctor, as he is a specialist in how to deal with such cases.

Secondly, it is advisable to be patient with your mother, strive for her treatment, and bear what may emanate from her. This is a great door to reward and entering Paradise, as confirmed by the Prophet, peace and blessings be upon him: "May his nose be rubbed in the dust! May his nose be rubbed in the dust! May his nose be rubbed in the dust!" It was said, "Who, O Messenger of Allah?" He said, "He who reaches old age with his parents, one or both of them, and does not enter Paradise."