Which form of medication generally remains in contact with the skin longer?

Ointments are designed to provide a more occlusive barrier than the other forms of medication, which allows them to stay in contact with the skin for a longer period of time. This characteristic is primarily due to their higher oil content compared to creams, lotions, and gels. Because ointments are thicker and greasier, they adhere better to the skin, preventing the medication from evaporating quickly. This prolonged contact enhances the absorption of the active ingredients, making ointments particularly effective for delivering medication in certain dermatological conditions.

In summary, the formulation of ointments, with their emollient properties and occlusive nature, is what allows them to remain in contact with the skin longer than other forms of topical medications.