Psoriasis and dermatitis herpetiformis are both chronic skin conditions. According to the National Institutes of Health (NIH), psoriasis is characterized by skin redness and silvery scales. Dermatitis herpetiformis is characterized by itchy rashes.
Symptoms
Psoriasis symptoms include dry skin patches that are typically raised and thick. Dermatitis herpetiformis is typically characterized by itchy bumps and blisters on the buttocks, elbows, knee and back, the NIH says.
Cause
Psoriasis is typically an inherited autoimmune disease in which your immune cells mount an attack against your skin. The cause of dermatitis herpetiformis is unknown. However, the NIH indicates that it may be associated with celiac disease, an autoimmune condition in which your small intestine is damaged due to gluten consumption.
Population
The NIH indicates psoriasis typically affects people between the ages of 15 to 35. Dermatitis herpetiformis usually affects people older than 20, although it can also affect children.
Treatment
Psoriasis can be treated with such medications such as cortisone and etanercept. Dermatitis herpetiformis can be treated with dapsone. You should adhere to a gluten-free diet as this can prevent dermatitis herpetiformis.
Complications
The NIH says that psoriasis can lead to severe itching, secondary skin infections and pain. Dermatitis herpetiformis can increase your risk of intestinal cancers.
