an irritant – a substance that directly damages the outer layer of skin.Read about diagnosing contact dermatitis Causes of contact dermatitis your symptoms are not responding to treatment.the substance causing your contact dermatitis cannot be identified.They can try to identify the cause and suggest appropriate treatments.Ī GP may refer you to a doctor who specialises in treating skin conditions (dermatologist) for further tests if: See a GP if you have persistent, recurrent or severe symptoms of contact dermatitis. They can recommend treatments such as emollients (moisturisers), which you rub on your skin to stop it becoming dry. Speak to a pharmacist if your contact dermatitis is troubling you. MARAZZI/SCIENCE PHOTO LIBRARY When to see a pharmacist