What are the most common eczema triggers? Could a severe reaction to poison ivy trigger an eczema flare after/in addition to the allergic rash?

Eczema Triggers. Eczema Triggers include Chemicals, Hot water, Overbathing, detergents, soaps, shampoos, perfumes, scented body care products, stress, pet dander, molds, dust mites, cockroaches, to name a few. Yes, a severe reaction to poison ivy could definitely trigger an eczema flare! Hope this helps!