on most hbv is dormant already (low replication), you just have to monitor when it gets active if it makes damage during years (it takes years/whole life to make damage), post her tests, test needed are here:
http://www.medhelp.org/health_pages/Hepatitis/HepB-Introduction--Welcome-Page/show/34?cid=153
in case hbv is active these are the only drugs for first line treatment (all the others must not be used anymore because weak and make resistance):
tenofovir: most active,1% sides on kideny function/bone mineral density, hbe positive 10% eradication of hbv, hbe negative 0%, no resistance
entecavir, no sides, hbe positive about 8-10% eradication, hbe negative 3% eradication, 1.2% resistance
interferon, many heavy sides, 1-2years treatment, 11% eradication, no resistance, by 12week it is possible to see if it might eradicate hbv or not
also tenofovir will probably eradicate hbv by 15-20 years but nobody has reached so many years on therapy yet to confirm it, patients who did not develop resistance on weak old drugs (very rare on old drugs) have reached very low levels of cccdna (virus)/eradicted hbv in 10-13 years