FIELD : medicine.SUBSTANCE : invention refers to medicine, namely to surgery, traumatology, catastrophe medicine, and can be used for stopping external haemorrhage. For this purpose, hydrogel is preliminarily prepared from sterile distilled water using a thickener of CARBOPOL ETD 2020, or CARBOPOL 940, or CARBOMER type, which enables to obtain hydrogel viscosity of not less than 100 poise. Further, the hydrogel is applied on a vacuum-forming elastic element-suction cup, which is applied on the skin injury point and fixed with a medical plaster or bandage, thus performing crushing of the damaged vessel.EFFECT : method provides temporary stop of external haemorrhage within minimum amount of time, reliable sealing of the damaged vessel, reduced blood loss.1 cl, 1 ex