There are many herbal oils that can be massaged into the sore area which can relieve the back pain. You need someone willing to help you out with this and willing to take instruction. Ask them to rub in the oils using the knuckle part of their fists and to increase pressure slowly. At first, this may cause discomfort but the pain will go away over the time of the massage. Your muscles will begin to relax. If the pain starts getting worse you should stop as you could actually cause more harm than good. Look into getting a good back brace with a gel pack which will take the strain off the sore muscles and soothe at the same time.
A good way to prevent damaging your back in the first place is to remember to bend your knees and lift with your legs when lifting heavy objects. Lifting with your back can causes serious damage by pinching nerve endings and putting a lot of stress on your spine.
There are back braces with many features, such as an adjustable air bladder which provides a custom fit and offers focused compression in the lumbar area. The one I like also has a self-contained pneumatic system designed to be low profile and easy to use. The mesh panels and ventilation hole features increase breathability and enhance comfort.
This inflatable back brace, With overlapping double pull straps, provides additional support to the lumbar and abdominal areas. Flexible stays provide optimum support in the lumbar area and rubber material is strategically sewn inside each support to prevent the brace from moving.
It also has a gel pad which helps defeat the pain cycle by providing cold therapy to reduce swelling and, or, hot therapy to increase blood flow and stimulate recovery. Suspenders are available for extra support.