I am afraid it is rather difficult to suggest any remedies based on such sketchy information. You have not mentioned the duration of the pain and how long you have suffered it. The best thing to do would be to consult your doctor about these symptoms. The doctor should be able to help you.
In the meanwhile, you can try out some home remedies to reduce the pain. A pain in the back could be the result of a sprain or a bad angle while sleeping. However, if your pain lasts for some time, then you are right to want to take some action. Of course, getting some obliging person to use an ointment and massage the area will help you. But in some cases of muscles pull or sprains, a massage is known to worsen the situation. Back pains can also be caused by putting too much pressure on your bladder. A kidney infection is a possible reason for the back pain. But till your doctor has examined you and identified the reason for your back, there is no need for you to worry.
In the meanwhile, you can try removing the infection by drinking water and flushing it out. Drinking cranberry juice helps too. Two cloves of garlic every day can have long term benefits.
answered by M W