How do I find the virus in my blood if I'm doing well on hep b treatment?

Lab testing. Your HBV dna (hepatitis b viral load) should be monitored and should become undetectable. A goal of therapy is to go from having an "e antigen" (hbeag) to an "e antibody" (hbeab), but that doesn't always happen. Better yet is to convert from a surface antigen (hbsag) to a surface antibody (hbsab), but that's very uncommon.