Pain from the neck down to the lower back is often due to widespread muscle strain or spine issues like Cervical spondylosis and Lumbar spondylosis. Medicines and sprays like Dynapar Spray may give limited relief, so focus on posture correction, avoiding long sitting, using a firm mattress, and starting physiotherapy with stretching and strengthening exercises. You can take a mild pain reliever like Paracetamol if needed, but since pain is widespread and persistent, consult a doctor for proper evaluation and a structured treatment plan.