treat something carefully

Throughout the rest of that day, however, Leon carefully and politely treated her like a stranger.

Fire can be very useful if it is treated carefully.

If fire is not treated carefully, it can be very dangerous.

"Martinez was advised that these containers had to be treated carefully."

The company has carefully treated the dispensing of the drug.

In any case, the conclusion needs to be treated carefully:

He's neither friend nor enemy, but I think he's someone who has to be treated carefully.

However, in the aftermath of the rebellion they were treated carefully to avoid further trouble.

Paradoxically, though, schools themselves were not always treated carefully.

For reasons given in the text, all figures should be treated carefully.