Question:
What should one do if using water causes pain or harm to certain parts of the body during ghusl or wudu?
Answer:
If using water causes pain or harm to certain parts of the body during ghusl or wudu, then only such parts should be wiped over; the rest of the parts are essential and must be washed as normal.
And Allah Most-High knows best.
Imam Ahmad Rida Khan رحمة الله تعالى عليه
Translation by Dr Musharraf Hussain Al-Azhari Translator of Majestic Quran, www.majesticquran.co.uk