Herald Patch Incidence
Facts about pityriasis rosea:
- Pityriasis is very common, but the exact incidence is not known.
- Most cases occur in children and young adults
Continue to Herald Patch Symptoms
- Karnath B, Hussain N, Bevin M. Pityriasis rosea. Appearance and distribution of macules aid diagnosis. Postgrad Med. 2003 May;113(5):93-4, 97. 
- Stulberg DL, Wolfrey J. Pityriasis rosea. Am Fam Physician. 2004 Jan 1;69(1):87-91.