Conditions that may cause a rash that looks similar to an inverse pityriasis rosea rash include psoriasis, the fungal infections tinea corporis and tinea versicolor, lichen planus, parapsoriasis ...

Guttate psoriasis tends to be itchier than other forms of psoriasis and can be easily mistaken for a drug rash, pityriasis rosea, or other dermatologic conditions. As the papules begin to heal ...

Pityriasis rosea is an inflammatory skin condition that ... and prescription medications. Psoriasis is an autoimmune disease that causes scaly, itchy patches to form on the skin of elbows, knees ...