Consult a Doctor
The first thing to do when you have back trouble is to see a doctor and consult what needs to be done. The doctor can tell you if you need lumbar support or not and if so, which particular kind of support will suit your problem the best. Make sure that you get the right one for your needs as this is the first step in getting your back fixed.
Buy a Back Brace
The next thing to do is to buy a back brace for yourself as per your discussion with the doctor. Get one from a decent brand. This will cost more but is going to be better in quality and will serve the purpose well. If your organisation offers one, you can take that as well.
Wear it at Work
When you are working make sure that you wear it as it will support your back quite well. Particularly when you are carrying weight, you must be wearing it. It will provide you some much needed support and will reduce the stress on your back.
Find the Best Spot
Everyone has particular areas in the back that are more troublesome then others. Make sure that this area gets maximum support so that it remains protected. You will find this area with a bit of use as supporting this area more will make you feel much better.
Get Used to it
Wear it whenever you are lifting weights or need to do something that requires you to bend. It alone cannot fix the problem and you will need to improve your overall posture and habits related to it. You may feel uncomfortable at times but that is okay and you will eventually get used to it.