Try to limit your time to fifteen minutes or less in the bath or shower. Bathing should be done no more than once a day. If you bathe too frequently you will remove the natural oils from the skin causing dryness. Avoid using harsh soaps which dry the skin. Recommended soaps are Dove and Basis.
Deodorant soaps are often very harsh and drying.
Even better than soap are soapless skin cleansers such as Cetaphil Lotion and Aquanil. Limit the use of soap to areas that develop an odor such as the armpits, genital area, and feet. When toweling dry, do not rub the skin. Next apply a moisturizer to the skin. Concentrate on areas of your skin that become dry.