She was advised to bathe in water that had been used to wash a dead person!

No File Exists
Check below answers in case you are looking for other related questions:
Bowing to anyone other than Allaah is haraam
Does the one who goes to a fortune teller and asks him about something become a kaafir?

No File Exists
Related Answers:
Making fun of some aspects of the Sunnah
Will good deeds avail a person anything if he dies as a kaafir?
Ruling on seeking help from the qareen on the part of some of those who treat sickness with ruqyah
Bowing to anyone other than Allaah is haraam
Does the one who goes to a fortune teller and asks him about something become a kaafir?

Recommended answers for you:
Is it permissible for a woman to remove the pubic hair of another woman?
Ruling on suicide and on offering the funeral prayer and praying for one who has committed suicide
The proper way to make du’aa’ during prayer
Dealing With a Cheating Husband
Seriousness of debt