Hi I'm Dr. Raphael Darvish with "Skinpeccable Dermatology and Cosmetic Laser Center" here in Los Angeles, California and I'm here today to discuss with you how to diagnose a skin rash. Skin rashes are quite complicated. It takes many years of training to be able to diagnose a skin rash but in this short video I'm going to be just explaining the basics of skin rashes. So there are a few different qualities to think about when diagnosing a skin rash. First where's the location, what's the color and what's the appearance? So location is a good, good tip as to what this could be. So obviously a rash on the face generally is going to be ache or rosacea or seborrheic dermatitis. Acne being just general acne that most people know, some pustules, painful red bumps, rosacea, flushing red cheeks and seborrheic dermatitis, some scaly skin on the sides of the nose and up by the eyebrows. Elbow rash generally is going to be you know, psoriasis. Generally if you have bilaterally silvery scaly rashes can indicate psoriasis. Elbows and knees are generally the most commonly affected areas. Bottom of the feet, Athlete's Foot, scaly rash. Now in general, when thinking about rashes, what is the treatment and generally if something is itchy the treatment is going to be a steroid cream. Now itching most commonly refers to something allergic in nature, eczema falls under that classification. So, again, best to leave the treatment options to your doctor but I'm just giving you an overview. If your rash is very linear in fashion, so say for instance you have something just like a straight line on your skin, that generally means it's something contact related because in nature there are no straight lines. So if you end up with something that's a straight line then it could be something that you came into contact with. Also you've got to think of location in addition to just the most common areas but say a random area like you, know, below your belly button, that's a location that a lot of people, you know, people get a rash at and that's a dead giveaway for nickel allergy where people are allergic to the nickel on the back of the button of their jeans. So, these are all things that you've got to think about but the number of different kinds of rashes is very broad. These are just the most basic of basic tips that I'm giving you here. I'm Dr. Raphael Darvish and that's a brief overview of how to diagnose a skin rash.