Arthritis and other inflammations of the joints cause intense pain and patients use many painkillers to get relief from the pain. However scientists have found out that the saline solution reduces painful inflammation of the joints.
Even ordinary table salt in high concentrations can be used and, unlike conventional drugs, there are no unpleasant side effects.
Dr Compan and Dr Pablo Pelegrin, Manchester University’s Faculty of Life Sciences, found cells in the bodies of arthritis sufferers expand but salt water can reduce the swelling by dehydrating them. The salt worked the same whether it was injected into the body or absorbed through the skin via bandages soaked in saline or bathing.
They have found that hypotonic solutions (low in salt) strongly activate inflammation at molecular level, which means conversely, the use of hypertonic solutions (high in salt) was a potent inhibitor of such inflammatory signals at molecular level.
Therefore, osmotherapy (dehydration) with hypertonic solutions could be beneficial in the management of inflammatory joint diseases, such as rheumatoid arthritis, either by prolonged soaking or by vapour pressure techniques,according to Dr Compan.
The results were published in the journal Immunity.