Next, click here and go to Facebook messages:
Then, type people name who you want delete messages in Search Box:
I delete messages with Nida:
Next, click Actions ~> Delete Messages:
Now, tick messages you want to delete:
After that, click Delete:
Finally, click Delete messages:
Done. If you want to delete a conversation, click Actions ~> Delete Conversation:
And, click Delete conversation and you’re done.
please share this(How Do I Delete Messages Or A Conversation On Facebook?) on facebook and all??