Explaining therapy to a child can be a challenge, especially if they believe something is "wrong" with them. Try the following tips:
Explain that, "Since things aren't going so well for you at home (or at school) we thought you would like to have some special play times with a play therapist named Rachel. She has a playroom with a lot of toys that you can play with in a lot of different ways."
And, "Rachel will not make you do anything you don't want to do, and you will be able to choose when you want to say something."
Also, "Your play times with Rachel will normally happen at the same time each week. Sometimes she will need to talk to your parents about how you're doing."
In the link below you will find an image carousel that shows various pictures of our facility and some of the toys in the child therapy room. Allow them to scroll through the carousel and ask you questions.
Remember that you are the parent, and you know what is best for your child, even when they throw fits about it.