Healthy skin has a natural layer of oil and bacteria that help keep it from drying out. Excessive exposure to soap and water, especially hot water, can strip away this protective layer, which can cause the skin to become dry, flaky, and itchy. This can be particularly problematic for people with skin conditions such as psoriasis or eczema.2 On days when you don't shower, you can use a clean washcloth to wipe yourself down. It's also a good idea to wash your face every night to remove dirt, makeup, and sunscreen, which can all clog pores.