How to completely delete messages that cannot be recalled?

1. Delete chat record: If you use instant messaging software, you can find the message in the chat window and delete the whole chat record, so as to ensure that the message will not appear again.

2. Clear the cache: If you are using a mobile phone application, you can try to clear the cache of the application, which will help clear the temporary files and data in the application.

3. Contact the other party: If the message you send is aimed at a specific person, you can contact the other party and ask them to delete the message. If the other party agrees, you can delete the message in the above way.