Your mother may have a hereditary weakness in her intestines, or if she has the same diet and lifestyle as her mother, may be developing the same problem. The Epsom Salts can be harsh on the intestine--be on guard if she gets increased pain. Have some probiotics for her to guzzle after the liver flush. It is possible that she is just low on friendly flora. The Epsom Salts in the Liver Flush tend to decrease one's friendly flora. It is one of the reasons you wait 2 weeks between liver flushes; so giving her probiotics afterwards may help with pain. For that matter, giving her a whopping dose of probiotics beforehand might be a good test. If her pain decreases you would know the pain is in part a flora issue.