8 Celebrities Suddenly Admitting They Don’t Shower

“If someone suffers from psoriasis or seborrheic dermatitis, they should be showering daily,” says Dr. Brodsky. According to the American Academy of Dermatology, psoriasis is a disease that causes raised, red, scaly patches to appear on the skin. Similar to psoriasis, seborrheic dermatitis is a red, itchy rash that can appear on your scalp. Dr. Brodsky says these diseases have rapid cell turnover rates, which cause the skin to flake and appear dry but not actually be dry.