How do I get out of the messaging/chat screen on Facebook on my s6?

[AC Question]

I go to answer a private message but can't exit that screen after! I either swipe and get the screen or the drop down bar at the top. Left and right go nowhere. I don't see an exit button.

 

[itguyjax8430]

I go to answer a private message but can't exit that screen after! I either swipe and get the screen or the drop down bar at the top. Left and right go nowhere. I don't see an exit button.

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