Health Sachet No 303:

Chronic Pain is a lifelong feature of many disorders. Yet, allopathic painkillers cannot be given for extended periods of time, since their long-term use causes many side effects.

National Institutes of Health have come up with a comprehensive, scientific review of all the alternate therapies available for chronic pain management in common conditions such as:
Low back pain, Neck pain, Headache, Osteoarthritis, Rheumatoid arthritis, Irritable bowel syndrome, and Fibromyalgia.

The article covers the evidence, efficacy and safety in pain management of yoga, physiotherapy, massage, tai chi, acupuncture, as well as various nutrients and herbs.
Check further details about your specific condition in the article.

Many alternate ways of treating pain have merits, with pros and cons, and should not be looked as pseudo-science.