Butterfly rash: This rash appears on the nose and cheeks in the shape of a butterfly, skipping the skin under each side of the nose. Lupus and your skin: Overview Lupus is a disease that can affect the skin in many ways. It may cause a: Widespread rash on the back Thick scaly patch on the face Sore(s)

  Pityriasis rosea: This common skin disease causes patches on the skin. Your dermatologist may call the large patch a mother patch. The smaller patches are daughter patches. Pityriasis rosea: Overview Pityriasis rosea: This common skin disease causes patches on the skin. Your dermatologist may call

  Lichen planus: This common skin disease often develops on the wrist. Lichen planus: Overview Many people get lichen (LY-kin) planus (PLAN-us). This disease can develop on one or several parts of the body. It can appear on the skin or inside the mouth. Sometimes, it appears in both places. Lichen