How often should I put egg on my hair?

I used to have very strong hair, but unfortunately due to stress, and a some genetics my hair has been weaken over the last year. I have been putting shea er and some olive oil in my hair at night, but It has hasn't completely stopped the hair loss. My brother told me about putting egg in your hair, and I wanted to know how often to do it. What can happen if you put it on too often? Thank you.