What is the primary function of over-the-counter (OTC) medications?

The primary function of over-the-counter (OTC) medications is to treat minor ailments without the need for a prescription. These medications are designed for self-care and can effectively address common health issues, such as headaches, allergies, colds, digestive problems, and minor aches and pains.

OTC medications are available to the public without a prescription, making them accessible for quick relief of these non-serious conditions. Their formulation allows individuals to manage their symptoms easily and safely, provided they follow the instructions on the label for dosage and use.

The other options refer to functions that are not typically associated with OTC medications. For example, managing chronic illnesses usually requires prescription medications or a comprehensive treatment plan that OTC medications are not designed to fulfill. Providing immunity to diseases typically involves vaccinations, which are not classified as OTC medications. Additionally, while some OTC products may assist with pain relief, they do not serve as primary pain management for serious or chronic conditions, which often require more robust medical intervention.