If you want to delete multiple Instagram messages at once, there are a few different ways to go about it. The first option is to use the Instagram app on your phone. Once you’re in the app, go to the messages tab and select all of the messages you want to delete. Then press the “delete” button in the top right corner. If you don’t have access to your phone, you can also delete multiple messages from your computer. First, open up the Instagram website on your computer. Next, click on the three lines in the top left corner of the screen (this will open up a menu). From here, select “ Messages ” and then select all of the messages you want to delete. Finally, press the “delete” button in the top right corner. whichever method you choose, be sure to backup your data first just in case something goes wrong! ..