Pityriosis rosea Gibert (PRG) is one of the most mysterious skin diseases. The reasons for both its occurrence and spontaneous disappearance after a few weeks in the absence of water procedures and irrational external treatment remain unclear. This erythematous-squamous para-infectious dermatosis is quite rare in children. PRG occurs more often in spring or autumn acutely, usually manifested by a maternal plaque in the form of a reddish-pink spot of a round or oval shape with a diameter of several centimeters. On the periphery of the focus, small-lamellar collar peeling, the central part of a brownish-yellowish color, resembles crumpled paper, which is pathognomonic for PRG. A rash is localized on any part of the skin. Often, efflorescences are preceded by prodromal symptoms — malaise, headache, sub-febrile condition, pharyngitis, submandibular lymphadenitis. A few days after the maternal plaque, a secondary erythematous-papular disseminated small rash appears in the form of an elongated oval. It is located more often on the trunk and proximal parts of the limbs. Children may have atypical localization: on the face, scalp, hands and feet. In this case, the exudative component is more pronounced. The elements of the rash along the length are oriented along the lines of Langerhans. They are multiple, discrete. In uncomplicated cases, rashes disappear completely after 6–10 weeks, with the exception of post-inflammatory pigmentation. We observed a girl, 8 years old, who had skin lesions resembling PRG for 9 months. The diagnosis was histologically confirmed. The chronic dermatosis was fixed by the use of pimafucort. Another patient, 15 years old, who suffered from severe psoriasis, during remission, erythematous spots with a ring-shaped villous collar of yellowish scales developed, that is typical for PRG.