If you have regular normal back pain but it won't go away or keeps coming back then a visit to your regular doctor is recommended upon your next appointment.
Or you can make an appointment with your regular doctor to see them about the back pain.
You can try taking some over the counter pain medicine to help relieve the back pain or use a heating pad against your back which can sometimes relieve back pain that isn't too severe.
If you have a kid you can also have them walk on your back which also can sometimes help with back pain as I used to walk on my dads back when I was a kid and it helped his back pain as well.
If the back pain does get worse or is more severe then you may want to go to urgent care to see what is causing the problem.