Before I had my baby I never had dry skin even my hair was super hydrated but now after having him…

Before I had my baby I never had dry skin even my hair was super hydrated but now after having him my skin is so dry and my hair too, it's like the Sahara 😕 has this happened to anyone else? What did you do to fix it? I'm not really a fan of lotion but I do use all natural oatmeal soap which isn't even helping anymore.