Physics engine Unity2d. How to make a rebound?

Question

Unity

It is necessary to make an elementary rebound of the character when receiving damage.
I was able to make the following code:

if (collision.gameObject.tag == "Vrag")
        {
            gameObject.GetComponent<Rigidbody2D>().AddForce(transform.up * direction * powerForce, ForceMode2D.Impulse);
            TakeDamagee();
            hpText.text = ((int)hp).ToString();
        }

That is, we take damage and the character jumps with a certain force.
But after all, it is necessary that he also moved along X.
I tried to write transform.right , but it didn't work.