Permanent Hair Removal With Home Electrolysis.Needles, Epilators, Holders.

How much do you think electrolysis would cost for hair around the nipples?

I have several dark hairs around my nipples. They frequently become ingrown, and need to be plucked very often because my hair grows really fast. I’m thinking about electrolysis.
How much do you think that would cost? How long would it take? Do you have to have more than one treatment? How does it work? Is it worth it?