Pemphigus is a rare group of autoimmune skin diseases that causes painful blisters to form on the skin and/or mucous membranes (lips, mouth, esophagus, nose, eyes, genitals).

Pityriasis rosea is a common, self-limited rash that typically begins with the appearance of a solitary, enlarging, circular, pink, scaly patch - known as the “herald patch”.

Prurigo nodularis is a condition where repeated scratching or picking at a site creates itchy, raised, hard bumps on the skin.