If you want to delete a comment on one of your Instagram posts, you can do so by following these simple steps:

1. Open the Instagram app and go to your profile.
2. Select the post that has the comment you want to delete.
3. Find the comment you want to delete and swipe left on it.
4. Tap the trash can icon that appears.
5. Confirm that you want to delete the comment by tapping "Delete."

The comment will be immediately removed from your post. If you want to delete a comment on someone else's post, you'll need to get their permission or ask them to delete it themselves.

Deleting comments can be a useful tool for managing your online presence, especially if you receive negative or offensive comments. However, it's important to use this tool judiciously, as deleting too many comments can make you appear unresponsive or uninterested in engaging with your audience.