Yes, you can shower too much. Dr. C. Brandon Mitchell, an assistant professor of dermatology at George Washington University, believes that most people over-bathe.  If you shower too often, and on days when you are not sweaty and dirty, you can wash away healthy bacteria and oils, leading to flaky, dry skin and could trigger itching. Avoid showering too frequently as it can break down the skin barrier. Dry, cracked skin can let in bacteria. Showering too much can also cause flare-ups of skin conditions like eczema and psoriasis.