Question
Why taking an antibiotic is not effective in the common cold?
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Answer
Colds are caused by viruses. When people take them unnecessarily, antibiotics become less effective because bacteria build up a resistance to them. That's why your doctor won't prescribe an antibiotic if you have a common cold. Common cold is caused by a virus and virus do not have a fixed biochemical pathways that is why antibiotics and not able to get into their way.
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