Severe lower back and hip pain unresponsive to topical sprays like Volini often indicates a deeper issue, such as sacroiliac (SI) joint inflammation, a herniated lumbar disc, or sciatica (nerve compression), rather than a simple muscle strain. Since topical treatment isn?t working, you may require oral anti-inflammatory medications or muscle relaxants, which should only be taken under medical supervision. I highly recommend consulting an orthopaedic specialist for a physical examination and potentially an X-ray or MRI to identify the exact cause. For temporary relief, try warm compresses, maintain a straight posture, and avoid bending or lifting.