Pityriasis Rosea — What You Should Know Pityriasis rosea often starts as one single patch , then spreads over the body. Key points: • Usually follows a viral infection • Can spread but is self-limiting • Typically clears within 6–8 weeks • Treatment focuses on relieving itch and inflammation It may recur, especially during stress or illness . If you suspect this condition, see a dermatologist for confirmation. | Dr Lim Ing Kien