though i would otherwise never eccomend this, show your parents this topic, if your parens see that you were confident enouph to put it on the nternet, they might just believe you.
Do this, and show her this specific post.
Favoring one of your children over the other is a crime against humanity. (not literally, but, you know)
And if your son has an ear infection, and your daughter hits him in the ear, why the hell should
he get punished?
I can't even stand to get water in my ears, due to an ear infection, I'd kick my sister's ass if she hit me in the ear.
Now, run off and punish your daughter for what she did.