Jacob, a rambunctious five-year-old boy, was brought to the clinic by his mother. He was complaining of a scratchy sore throat, a nonproductive cough (a cough that does not produce sputum), rhinorrhea (a runny nose), nasal congestion (a stopped-up nose), and a headache that started the night before. He did not have a fever. His complete blood count (CBC) - the number of platelets and red and white blood cells in the blood, along with its differential (the different types of red and white blood cells) - was normal, as was his chest X-ray. Jacob was diagnosed with the common cold and was advised to rest, drink plenty of clear liquids, and use over-the-counter cough suppressants and either ibuprofen or acetaminophen for pain.
Why would the prescription of an antibiotic not be used in this case? What would be the potential harm in giving him a prescription?