Final answer:
To treat a viral infection, increasing fluid intake to prevent dehydration is recommended, especially if symptoms include vomiting or diarrhea. Antibiotics are not effective against viruses, but certain antivirals like acyclovir or Tamiflu can be used for specific infections to control symptoms.
Step-by-step explanation:
When treating a viral infection, the appropriate interventions vary depending on the specific virus and the symptoms present. Increasing fluid intake is generally recommended to prevent dehydration, especially in cases where symptoms include vomiting or diarrhea, as in gastroenteritis. Unlike bacteria, viruses cannot be treated with antibiotics, so administering antibiotics is not an effective treatment for a viral infection unless a secondary bacterial infection is present. In some cases, antiviral medications like acyclovir for genital herpes or oseltamivir (Tamiflu) for influenza can be prescribed to manage symptoms and reduce the duration of the illness. However, not all viral infections have specific antiviral treatments, and supportive care is often the mainstay of treatment. Supportive care usually includes rest, hydration, and over-the-counter medications to relieve symptoms.