What are otic medications primarily used for?

Otic medications are specifically formulated for application in the ear, which is why they are primarily used to soften earwax and to treat ear infections. These medications often contain ingredients that assist in breaking down excessive wax buildup, making it easier to remove and preventing blockage. Additionally, they can include antibiotics or antifungals to address infections within the ear canal, helping to reduce inflammation and alleviate discomfort.

The other options pertain to the use of medications designated for different purposes: eye infections are treated with ophthalmic solutions, nasal symptoms are addressed with intranasal formulations, and topical anesthesia is applied directly to the skin or mucous membranes but not specifically to the ear. Therefore, the distinctive formulation and target application of otic medications make option C the most accurate choice.