What is the ruling on water that remains on the bathroom floor and is transferred by family members to other rooms, and what should the questioner do if her clothes touch these spots or if she steps on them with her feet? What is the ruling on urine splashing back during urination, and water splashing back during cleansing, and is it obligatory to wash clothes or the body every time?

We ask Allah to grant you healing. The cure for obsessive thoughts (waswas) is to disregard and ignore them. The bathroom floor and any water on it are pure, as are your brothers' feet and their sandals. As for the waswas regarding istinja' (washing after relieving oneself), ignore it. Whenever you doubt whether urine or impurity has touched something, wash the impure spot until you are reasonably certain the impurity has been removed. Then, get up; do not wash any part of your body or perform ghusl. Do not hold your urine; promptly relieve yourself and perform istinja' immediately. Ignore the whispers of Satan.