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Flu? Cold? Sinusitis? Bronchitis? …Do I need an antibiotic (Zpak!)?
Understanding the Need for Antibiotics A very small percentage of sinusitis and bronchitis are caused by bacteria and will need antibiotics. The rest (and all flu and colds) are caused by viruses, which are very, very biologically different from bacteria and therefore antibiotics will do nothing to them. Think about it like this: A virus is…