Brief Answer:
try and find the cause....

Detailed Answer:
Hi,

Back pain issues are difficult to treat unless the specific cause is found. The causes are varied ranging from improper posture / ergonomics, musculoskeletal aches, nutritional deficiency, anemia, previous injuries, spine defects, disc issues and so on. I will recommend visiting a doctor to analyse the problem and find a cause.

Until then I suggest good back rest, heat and cold compresses, topical pain relievers like volini or relispray and if necessary oral pain medications like etoricoxib + thiocolchicoside (Tab Nucoxia MR).

Hope this helps. Let me know if you need clarifications.

Regards

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