Years ago, sodium hypochlorite was used to chlorinate pools. It is basic, pH greater than 7. And I think ordinary hydrochloric acid was used to drop the pH back to 7. I don't know if these are still used. Sodium Hypochlorite ([math]NaClO[/math]) was used to chlorinate pools. If you want to lower the pH, try adding HCl.
Because most episodes of back pain have inflammation as a contributing factor, anti-inflammatory medication such as non-steroidal anti-inflammatory drugs (NSAIDs) is often an effective pain medication treatment option.
NSAIDS (Non-steroidal anti-inflammatory drugs) are used by many people for chronic pain, especially those with arthritis. Ibuprofen is one of three OTC (Over-the-counter) NSAIDs - the other two being naproxen and aspirin. There are quite a few prescription NSAIDs. Counting prescription and OTC NSAIDs together, more than 30 billion doses are consumed annually in the United States alone - so overall, they are a pretty safe class of drugs.