“Seborrheic keratoses are skin-colored or brown, warty bumps that typically develop on the chest, back, extremities, and around the bra line,” says Dr. Zeichner. They’re harmless, although in some ...
Also known as angular cheilitis, this condition can cause painful, red, flaky cracks that can be sore and have crusts that don't heal. It affects one or both corners of the mouth, where the upper and ...