As a worker in Iowa whose job involves a lot of manual labor, you understand just how big of a deal a back injury can be. Even if it's something as minor as a sprain or strain-related damage, the recovery period of a back injury can impact you negatively.
On the other hand, these recovery periods absolutely must be adhered to. If you try working before your back is ready, you risk worsening the injury and adding even more time onto your overall recovery period. Spine-health lists out different recovery periods for different back-related injuries, which should generally be adhered to even if it means you can't work at your full potential for a while.
Muscular strain is one of the most common causes of injury in the workplace and results from overtaxing your back muscles. The good news for you? Most of the pain is gone in days and the injury itself is likely fully healed in about a month or less. The bad news? That means for a month or less, you can't do anything to agitate those healing muscles.
Bigger back injuries take an even longer period of time to heal. Surgeries, for example, can take half a year, a year, or even longer for you to get back to your old levels of productivity. Pinched nerves or problems with the disc alignment can cause you great pain while lifting that may not be alleviated until the source of the damage is addressed and dealt with.
On the whole, back injuries are a bit slow to heal. Pushing forward despite that will only do you more harm than good in the end, though, which is surely something you would want to avoid.