The invention applies to the sector of devices for therapeutic and physiotherapy use and relates to a portable tool (1) for self-decongesting and reducing inflammation of the rachis of a user including two rods (2, 3) arranged for being placed at the sides of the spine, wherein the tool includes first flexible connecting elements (5) for the two rods (2, 3), arranged for limiting the mutual lateral displacement thereof between two pre-defined positions (D1, D2) of minimum and maximum distance and wherein the first connecting elements (5) are arranged for allowing non-parallel positioning of the two rods (2, 3) in a substantially convergent manner.
