Final answer:
The dosage form using the process of inunction is an ointment, which involves topical application with absorption through the skin. For home treatment of systemic infections, the oral route is generally preffered, but parenteral routes are used when oral administration is not suitable or effective.
Step-by-step explanation:
The process of inunction is associated with ointment. Thus, the dosage form that would use the process of inunction is an ointment. Inunction refers to the method of applying a medication to the skin, typically with a friction-producing action, to ensure it is absorbed. This is often used with ointments that are intended for local or systemic effects through skin absorption.
When it comes to administering antimicrobials for the treatment of systemic infections at home, the oral route is generally preferred when the drug is adequately absorbed in the gastrointestinal (GI) tract. However, for certain instances where the drug is not well absorbed or during specific conditions of the patient (e.g., vomiting), parenteral routes, such as intravenous or intramuscular injections, might be appropriate although they are typically performed in a healthcare setting.