Ointments do not contain any water and are therefore very greasy. The consistency depends on surrounding temperature, and although an ointment may feel hard while in the container, the warmth from rubbing it between the hands will soften it and make it easier to apply. Ointments are usually the most effective for dry skin, and are highly suitable for night time use. Ointments should preferably be applied every 6-8 hours, or when your skin feels dry. However, due to the ointments greasy feel on the skin ointments and potential to transfer on clothes, most people find them unacceptable for daytime use and prefer to use them during night time.