Can we make a medicine that controls the immunity system and take out viruses if the person is already infected?

Question: Can we make a medicine that controls the immunity system and take out viruses if the person is already infected?
- Keywords:
  control,
  immune system,
  infect,
  medicine,
  person,
  virus
Asked by 3D Waffle to Sanjib on 19 Jun 2017.
- Sanjib Bhakta answered on 19 Jun 2017:
  
  Great idea! Immune-modulatory drugs should be able to clear the damage caused at the primary site of infection and have a better antibiotic treatment outcome, is an idea we pursue in our lab to cure infectious diseases like TB.

Question: Can we make a medicine that controls the immunity system and take out viruses if the person is already infected?