the way to get rid of an ayin hara is to have an ayin tova!
If some one is always happy with what others have, even when he is left out this is what wards away the ‘evil eye’
This is where the custom to wrap a red string around KEVER RACHEL to ward off the ayin hara comes from, Rachel was happy for her sister Leah, even when she was left out.
Hashem is our shadow, if we look favorably upon other He will look upon us the same way.