Instagram Direct lets you send and receive private messages from your friends on the social media app. If the thought of sending the wrong message by accident mortifies you (or if you have already done so), don't worry. Instagram Direct allows you unsend a message after you've already sent it, helping you to avoid potentially embarrassing moments with just the click of a button.
Unsend a Message on Instagram Direct
Open Instagram, and tap the mailbox icon in the top-right corner of your screen.
Select the conversation that contains the message that you'd like to delete, and find the message that you want to unsend.
Tap and hold the message, then tap Unsend.
Once you unsend the message, it will be completely deleted from the conversation. However, the recipient(s) may have already viewed the message before you had a chance to remove it.