Carly Mallenbaum, USA TODAY Published 3:57 p.m. ET March 13, 2020 | Updated 4:14 p.m. ET March 13, 2020CLOSE When people ask how to protect themselves against the spread of COVID-19, one of the first suggestions from doctors is washing your hands. Here are the do’s and don’ts. USA TODAYAt this point, you know the drill: It’s important to wash your hands for at least 20 seconds in order to fight illnesses, including the new coronavirus COVID-19. There are songs to help you keep scrubbing and signs to help you remember to rinse.But what happens to your hands after you’ve washed them over and over or applied sanitizer again and again? Chances are, they become rough and cracked. Some people might develop inflammation like red patches of eczema.When you’re washing your hands to avoid disease, the last thing you want is to make your mitts so raw that they’re blotchy, or so ripped that a bacterial or fungal infection appears in the open area of the skin.So what should you do to care for your hands, and why do they get so chapped anyway? Mayo Clinic dermatologist Alina Bridges can explain.Handwashing strips natural oilsBridges compares hands’ natural oils with a car’s shiny, new

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