I Am HBsAg Reactive Since 2012 ,however HBeAg Is Non

I am HBsAg reactive since 2012 ,however HBeAg is non reactive and am continuously on viral therapy taking entacavir tablets ,after a year of therapy HBV DNA was less than 6 IU/mL in Oct 12 from 2.8X10 to power 4 IU/mL in April 12. The medicine was continued for 1 year and then it was stopped for 1 Year and than test was conducted in April14 the count was 8136 IU/mL, again doctor prescribed the entacavir tablets for another year. Is there any other remedy for maintain low HBV DNA count because the therapy is costly.I hv stopped taking the medicine from March15. I am female of 43 Years old.
Pls. advise on the alternatives available.