For nighttime use, people with dry skin are likely to benefit the most from applying an ointment. Ointments fall on the greasy end of the range of emollients and are very effective for dry skin. However, many people find them unacceptable for use during the day due to their greasy feel and slow absorption time. One possible nighttime routine could be to soak in an emollient bath, dry off by tapping gently with a towel and then apply the ointment to lock in moisture. If you use a topical psoriasis treatment then wait another 30-60 minutes before applying.