How is a topical medication administered?

Here is the question :

HOW IS A TOPICAL MEDICATION ADMINISTERED?

Here is the option for the question :

Under the tongue
Through an IV
On the skin
Through a needle and syringe

The Answer:

And, the answer for the the question is :

On the skin

Explanation:

[STC005782] Both prescription and over-the-counter formulations of topical medicines are available. They are available in a wide variety of formulations, such as ointments, oils, pastes, creams, foams, powders, and sprays, among others. They provide relief for a wide range of symptoms, such as aches and pains, skin irritations and rashes, and infections. Neosporin is a common antibiotic ointment that prevents infections in minor cuts, scrapes, and burns. Another type of topical treatment is a patch, such as the nicotine patch that is used to assist people stop smoking.