My 2yr old has been making herself throw up...needless to say Im constantly cleaning her, her bed,…

My 2yr old has been making herself throw up...needless to say Im constantly cleaning her, her bed, her toys and the carpet (we rent).

She does it for fun...not because she is mad or sick. She just loves to stick her fingers in her mouth to throw up. I stop her when I see her...but I dont always see her doing it because she does it when she knows Im not looking at her.. lets be real I dont look at her 24/7 especially when I am driving (once we get to the place, her outfit, mouth and carseat are all full of puke).

This has been everyday for the past 2 weeks or so...

I dont know what to do.

Is this a phase?

What can I do to help her?