What is the ruling on severe and continuous obsessive-compulsive disorder (OCD) regarding istinja' (washing after defecating or urinating), wudu' (ablution), prayer, and general purity, and what is the ruling on using the medication Philozac (a substitute for Prozac), and does it have the same result?

The treatment for obsessive thoughts is to turn away from them and not pay them any attention. What you are doing is not from piety or fear of Allah. The person experiencing these thoughts should enter the restroom, relieve themselves, then immediately leave without yielding to the obsessive thought that calls them to stay. If they perform istinja (definition)', they should leave and not repeat the istinja' nor pay attention to any water splashing onto their body or clothes. If they recite the Qur'an, they should strive to ponder the verses and contemplate the greatness of Allah Almighty, and not repeat verses without need. They should apply this to all their affairs. In this manner, let their acts of worship proceed until Allah bestows upon them recovery. It is also advised to consult a trusted female doctor and the counseling section of the website.