A, but if necessary, B.
The drugs and advanced medicine is there for a reason and is also one of the reasons the life span of human beings has been going up and up.
You should know how to take care of yourself though and not just jump to take a pill for every itch or minor nagging issue.
Yeah that was what made me think of this question. I had the flu recently and everyone who caught it immediately went to the doctor and got a script for antibiotics within like a day. some folks even got hospitalized.

I ended up waiting about 4 days. Fever broke and then I went in to make sure I didn't have something serious. Doc said since I was beating the fever to give it a few more days and if not he prescribe some antibiotics to take later if needed. I didn't need them and in a few days it went away.
While I was there though he looked at my chart, saw I had not been there in years and the last antibiotic I had was arithromiacin (sp?). He said it doesn't even work on elementary school kids anymore and laughed. So that got me thinking do people wimp out and go to the doc to fast, then the docs over prescribe?
Just like hormones turn off your natural ones and take over, doesn't antibiotics and what not do the same? If yes, I would think you don't built up any immunity.