Seborrheic Dermatitis

That red, itchy rash on your scalp that has flaky scales could be seborrheic dermatitis, or seborrhea. It’s a common skin disease that looks similar to psoriasis, eczema, or an allergic reaction. And it can appear on your body as well as your scalp. Causes We don’t know what exactly causes seborrheic dermatitis. It seems…