Findings published in JAMA Dermatology suggest that the use of immune checkpoint inhibitors may double psoriasis risk for ...

Inverse psoriasis, which causes painful lesions on sensitive skin folds, can be hard to treat. Find out more about this type of psoriasis.

Another psoriasis mimicker, pityriasis rosea, is thought to be secondary to human herpesvirus 6 or 7 infection, said Dr. Andrews, of the department of dermatology at Phoenix Children's Hospital.

Psoriasis is a chronic autoimmune condition that mainly affects the skin. ... Inverse psoriasis: ... leading to thick, scaly plaques, most commonly on the elbows, knees, scalp, and lower back.

- Inverse psoriasis: This appears as smooth, red patches in folds of skin, such as beneath the breasts or in the groin or armpits. Rubbing and perspiration can aggravate the symptoms.