Don't worry about her.
その件は気にしないでください。
Please don't worry about that matter.
Don't worry about her.
Never mind about that.
Don't bother about it.
Don't worry yourself about that.
Don't worry about such a thing.
Please don't mind that.
I don't mind that.
Don't worry about him.
Ignore Tom.
You can bet your boots on that.
Don't worry about the work.
Please don't worry over things like that.
Don't worry about such a trifle.
Don't worry about Tom.