ANSWER:

If she is known to give people evil eye, she must be ordered to say on the spot: Allahumma barik.

You also must observe your athkar in the morning, evening, after fard prayers, before going to bed and before leaving the house. 

QUESTION: What if a person(aunt) say something like you look beautiful & I’m afraid that one day she said to my sister in the wedding she had put on eye lens.my aunt said that she is so pretty at that moment eye lens breaks inside the eye. So how to save me from these situations sheikh? (Whenever my aunt said something good like that, bad will happen)