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.
Nonsteroidal anti-inflammatory drugs, or NSAIDs (pronounced en-saids), are the most prescribed medications for treating conditions such as arthritis. Most people are familiar with over-the-counter, nonprescription NSAIDs, such as aspirin and ibuprofen. NSAIDs are more than just pain relievers. They also help reduce inflammation and lower fevers. They prevent blood from clotting, which is good in some cases but not so beneficial in others.