Very practical at first sight. Unless you want to perform the search and your spouse (e) is in the process of looking at your mobile behind your shoulder.
If you are concerned about your privacy and you want to stay discreet, you can delete this history Instagram with a simple trick and practice.
Clear your search history on Instagram
Launch your Instagram application and log in to your account.
Then press the "Profile" button in the bottom right corner to open your profile.
Then tap the "Options" menu on the top right of the Profile screen. On iOS, it looks like a gear, while on Android, it looks like three vertical squares.
Finally press "clean search history". You will have to scroll the screen to find the button.
A dialog box will ask you to confirm. Press "Yes, I'm sure" to confirm.
You are now protected against curious. Finally at least on Instagram!