I've seen her sight & the name is crazily similar & she also uses Sherry's company name many times in her text. Not cool

I know of a face painter in another city who is going through the same problem. She has a very unique company name & it's spelled in a very particular way. Her competitor has just started up websites, ads & a facebook page w/ an almost identical name & exact spelling. I feel for her as well...
I think you should see what you can do legally & if you have any legal standing.