Which symptom indicates incorrect use of oseltamivir in a case where a family member has influenza?

The symptom that indicates incorrect use of oseltamivir in a scenario where a family member has influenza is stopping the medication. Oseltamivir is an antiviral medication commonly prescribed for influenza and is most effective when taken within the first 48 hours of symptom onset. Discontinuing treatment prematurely can hinder its effectiveness, potentially leading to prolonged illness or complications.

In the context of managing influenza within a household, adherence to treatment guidelines and completion of the prescribed course is crucial. Stopping the medication may suggest a misunderstanding of its importance in managing the disease or a belief that the illness has resolved too quickly, which can be misleading.

Continuing treatment, increasing the dosage, or consulting with a healthcare provider typically reflect a more responsible approach to treatment, either by ensuring completion of therapy or seeking professional advice for any concerns.