IgG - Herpes Simp 2 Antibodies is a blood test that detects the presence of antibodies against the herpes simplex virus type 2 (HSV-2). The test is performed by collecting a blood sample from the patient and analyzing it in a laboratory. The presence of IgG antibodies indicates a past or current infection with HSV-2. The test can help diagnose herpes and monitor the effectiveness of treatment.