What is presentation of contact HS? How is nickes CD

➢ The hallmark of the diagnosis of poison ivy is linear dermatitic lesions. ➢ The possibility of an external cause of dermatitis always must be considered if the dermatitis is linear or sharply defined Nickel ➢ Important DTH responses to divalent cations such as nickel have also been observed. ➢ Nickel is a component of many different types of metals, including white gold, German silver, nickel and gold plating, solder, and stainless steel. ➢ Unilateral nickel-induced facial dermatitis elicited by cell phone use has been reported. ➢ Hairdressers have been diagnosed with allergy-related hand eczema from prolonged skin contact with nickelcontaining scissors