An audience member shows Dr. Oz a rash on her hands and asks Dr. Oz about it.
Dr. Oz looks at her hands and thinks the rash is Contact Dermatitis (Contact Dermatitis is of two types: allergic (resulting from a delayed reaction to some allergen, such as poison ivy or nickel), and irritant (resulting from direct reaction to a detergent, such as sodium lauryl sulfate, for example). Some substances act both as allergen and irritant (wet cement, for example). Other substances cause a problem after sunlight exposure, bringing on phototoxic dermatitis. Based on the fact the audience member only has the rash on her hands, Dr. Oz thinks the rash is a result of something that only her hands and fingers are in-contact with.
Dr. Oz notes that the clues to figure out what is causing the rash are there, but it is up to the audience member to be a detective and note the effects of what she touches with her hands.
Dr. Oz further notes that he doesn’t think her skin condition is psoriasis, but that it could be eczema. Dr. Oz recommends that she add some healthy fats to her diet, like omega 3’s and olive oil.