What causes Psoriasis and Seborrheic Dermatitis?
Psoriasis can be caused by emotional stress, trauma to dry skin, some medications and streptococcal infection. There is evidence that psoriasis can be inherited and is an autoimmune disorder. Seborrheic dermatitis is also considered an autoimmune disease and can be caused by environmental allergens such as soaps, dyes, jewelry, clothing, as well as changes in temperature and humidity. Stress can also cause an eczema flare up.
