A skin lesion KOH exam is a simple skin test to check if an infection in the skin is caused by fungus. KOH stands for potassium (K), oxygen (O), and hydrogen (H). These elements make up potassium ...

Your skin is your largest organ, but it doesn’t get the attention it deserves—especially when it comes to skin checks for cancer. That should change, says Dr. Susan Massick, associate professor of ...