<unk>  is a form of severe pustular psoriasis occurring in pregnancy which may occur during any trimester.
It is the only well known pustular psoriasis which is treated with steroids.
Impetigo herpetiformis
Paederus dermatitis
Herpes labialis
Pityriasis rosea
Eczema herpeticum
Herpes Simplex Keratitis
Pityriasis rubra pilaris
Cat scratch fever