What antibiotics do
Antibiotics kill or stop the growth of bacteria. They have NO effect on viruses, which cause colds, flu, most sore throats and most coughs.
Why misuse is dangerous
Using antibiotics when they aren't needed — or stopping them early — helps bacteria become resistant. Resistant infections are harder, sometimes impossible, to treat.
Use them correctly
Take the full course exactly as prescribed, even if you feel better. Never share antibiotics or save leftovers for next time.
Common side effects
Upset stomach, diarrhea and yeast infections are common. Probiotics or yogurt can help; severe diarrhea or rash needs a doctor.
Ask before you take
Ask your doctor: 'Do I really need an antibiotic, or will my body clear this on its own?' Often the honest answer is no.