Need help with moving an empty game object from one side of my player to the other

So I recently followed a melee combat tutorial and in that tutorial they used an empty game object as a sort of hitbox for the melee weapon. When I tried it it worked fine but it would stay at the right side of my player even when my player was facing left. I flip my character using the flipX and flipY functions of the sprite renderer. Is there anyway I can move the empty game object to the other side of my player when he flips that way? https://youtu.be/1QfxdUpVh5I This is the tutorial I followed. Also keep in mind that I am a total rookie at coding and using unity since I started using it very recently.