Praise be to Allaah.
We ask Allaah to grant your mother quick and full healing by
His Leave and to decree for her and you reward, patience and steadfastness.
We do not see anything in your question that would make us
say that you should not go to that woman who treats people with ruqyah. It
says in the question that she does ruqyah by reciting Qur’aan, and she uses
blessed oil (i.e., olive oil) and ‘ajwah dates which protect against poison
and spells by Allaah’s Leave, and the fragrance of rose water which gives
one strength to resist witchcraft and hasad (destructive envy); some of them
also use ‘ood (aloeswood) and bukhoor (incense) to achieve the same purpose.
All of these are things that are acceptable in sharee’ah in sha Allaah.
But what we see here is the use of salt which is sprinkled in
the house, and we are afraid that this idea may have been picked up by some
of those who do ruqyah from the myth or belief of the common folk that salt
wards off the evil eye and so on.
We asked some of those who do ruqyah about that and he said
that salt has no such effect, even though some people use it.
What we advise you to do is to be fully aware of what words
and recitations she uses in her ruqyah, and if she uses anything other than
the Islamically acceptable words such as dhikrs, du’aa’s and verses, such as
things that cannot be understood, or you have any doubts about her, then
hasten to ask her about what it means, and ask knowledgeable people about
her. Many of those who treat people with ruqyah pretend to be reciting
Qur’aan to fool the listeners, when in fact they are using sihr (witchcraft)
and trickery and using hidden words which they say or write in order to harm
the sick person so that he will carry on coming to him and giving him
money.
See also on our site a number of questions on this topic:
11290,
12918,
13792,
21124 and
91901
And Allaah knows best.