Torch infection. Asked anything wrong.

Hi Mam/Sir, In 2017 I was pregnant with twins and in 4th month I had miscarriage and 2018 I was pregnant but baby growth is not proper and I am under medication for baby growth but suddenly miscarriage happened in 2nd month. And now we are planning for pregnancy, so we thought to take Torch infections before I get pregnant, in torch report for rubella virus igg, cytomegalovirus igg and herpes simplex virus igg is positive. My doctor gave anti virus (acyclovir) tablet for 10 days and said me to wait for 1 year mean while I will be cured fully. My doubt is already after my 2nd miscarriage it's almost 1 year over why these virus are still there in my body. Only 10 days tablet is enough or any other treatment is required. Sorry if I have asked anything wrong.