In the paper antistaphylococcus and polymixine liquid sorbents are used to lavage infected rat abdominal cavity against gram-positive and gram-negative microfloral toxins. Sorbents have been revealed to remove erythrocyte antigens from the surface, that are affine to immobilized ligands on the matrix. Polymyxine affine sorbent arises quality of the usual lavage of the infected abdomen. 3 hour lavage by fresh portions of the affine sorbent removes fixed toxins from the abdominal surface. Sorbent injection into purulent abdomen for 24 hours provides blood detoxication.