Lower limb detumescence device for external application of alum

The lower limb detumescence device comprises an alum bag, a plurality of longitudinal and transverse suture lines extending to the two ends are arranged on the alum bag, and the internal space of the alum bag is evenly divided into a plurality of bag inner cavities by the suture lines. And alum powder is uniformly filled in each bag inner cavity in the alum bag. The lower limb detumescence device for external application of alum belongs to non-invasive operation, is simple in use method and good in patient comfort, does not have operation deviation of medical staff with different experiences, does not need to monitor the input and output amount, electrolyte and the like of the patient during use, and can visually observe the edema condition of the lower limbs of the patient. The device is high in economical efficiency and can be repeatedly used clinically after hospital infection work is completed during use, and the economic problem caused by long-term use of medicine for detumescence is relieved for a patie