A topical lotion that provides fast-acting, water resistance pain relief from arthritis, joint aches, muscle aches, tennis elbow, bursitis and more.
Opioids no better than placebo for short-term lower back and neck pain | New Scientist
People who took the opioid oxycodone or a placebo for six weeks reported similar pain scores for acute discomfort in their lower back or neck.
Source: back pain