The rash is so itchy that you can't sleep or go about your day.Bumps and blisters, sometimes with oozing and crusting.Dry, cracked, scaly skin, typically on white skin.Leathery patches that are darker than usual (hyperpigmented), typically on brown or Black skin.Signs and symptoms of contact dermatitis vary widely and may include: The rash can develop within minutes to hours of exposure, and it can last 2 to 4 weeks.
For example, the rash may show up along a leg that brushed against poison ivy. Here, the blisters are caused by contact with the oily substance in poison ivy (urushiol) that causes allergic reactions.Ĭontact dermatitis shows up on skin that has been directly exposed to the substance causing the reaction.
