Contraparte (protivooterne, counter cut - cut, cross-cutting opened purulent cavity on the side opposite to the main section. An important and effective method of prevention and treatment of purulent satekov. Contraparte most shows, if the main section (with the usual position of the patient on a cot) is notably higher than the bottom of the cavity, which contributes to the delay in her pus. For the imposition of contraditory through the main section probe is introduced or forceps to the bottom of the cavity and, feeling his end through the soft tissue of the opposite side, cut them in layers, while the tool will not work in the wound.