Wearing taweez and amulets is shirk.

I ve sister in law who z married for 10yrs now but no child. She tried IVF too 3yrs back but failed..prblm is with her husband actually. Now she follows many people who give her taweez n all to wear.. Her age is also 45..now what she shud do. I want to help her for the sake of Allah. But she z sometimes aggressive n arrogant with her in law’s