How long does it take for your immune system to become immune to antibiotics or medication for a virus/infection?

Question: How long does it take for your immune system to become immune to antibiotics or medication for a virus/infection?
- Keywords:
  antibiotics,
  immune,
  long,
  medicine
Asked by 322eura33 to Alex, Ali, Kerry on 20 Nov 2014.
- Alison Thomson answered on 20 Nov 2014:
  
  It varies from person to person – we all have quite different immune systems. It also depends on how much of the medication you’re taking, and how often. If you were taking ibuprofen daily, you’d build up a tolerance to it in a matter of weeks or months!
  
  Hope that helps!!

Question: How long does it take for your immune system to become immune to antibiotics or medication for a virus/infection?