All of the following are seen in pityriasis rosea except

" Cradle cap " is a feature of seborrheic dermatitis. Pityriasis rosea is caused by HHV 7 > HHV 6 .It presents with single plaque on trunk - "Mother's or Herald patch" followed by numerous similar lesions along the line of cleavage giving " Christmas tree or fir tree " appearance. Lesions have peripheral scale termed as "Collarette scale" which on strecthing gives " Hanging curtain " appearance.