ANSWER:

Asking her to make dua for you is permissible. 

You should do the ruqyah yourself.

Asking others to make ruqyah on you takes one out of the 70,000 that will be admitted to Jannah without account. However, it is also permissible. 

http://localhost/assimnet2014/06/18/what-is-ruqyah-and-how-one-should-do-it/

I suffer from sihr n jinn possession,so i often ask my mother to read ruqya n blow on water and give me that water to drink;n i also ask her to make dua for my cure as I’ve read that a parent’s dua for their children is accepted.Am i doing something wrong n does this mean that i lack tawakkul as I’m asking my mother to do these things?Please advise.