The most common first aid is to treat the cause of the swelling with drugs. By trying to reduce the swelling, the pressure is decreased and if the median nerve is not damaged, it's function can be restored. However, many times the tissues are so enlarged that drugs can't reduce their size. Another approach is to use braces. Braces keep the hand in a position that prevents the wearer from causing even more damage due to bending or twisting at the wrist with the hopes that the pressure will subside in time. Braces are often used in conjunction with drug therapies. In addition, changing the way you use your hands can be beneficial. See this Ergonomic Tips page for suggestions. Just minor changes such as lowering your keyboard height can significantly raise the threshold of effort needed to make the symptoms arise.
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