Benzos are actually perfect for that use. They should only be used now and then, and if you don't make a habit of usage, chance of addiction is very low.

The problem is that even people who don't mentally or physically are prone to addiction can get hooked, slowly over time, because when things are harsh they long to feel better, not to get a kick or anything, just feel better. So over time they might get lazier about what is a situation actually needing the med and when you can suffer through.