Pityriasis rosea: Difference between revisions
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==Treatment== | ==Treatment== | ||
*Lasts 8 to 12 weeks | *Lasts 8 to 12 weeks<ref>Richard P. Usatine and Jennifer Krejci-Manwaring: Rakel: Textbook of Family Medicine, 8th ed., Saunders 2011, (Ch) 33:p720</ref> | ||
*Reassurance about the self-limited nature | *Reassurance about the self-limited nature | ||
*Natural sunlight may speed up resolution | *Natural sunlight may speed up resolution | ||
*Pruritus | *Pruritus<ref>Richard P. Usatine and Jennifer Krejci-Manwaring: Rakel: Textbook of Family Medicine, 8th ed., Saunders 2011, (Ch) 33:p720</ref> | ||
**Antihistamine, topical steroids | **Antihistamine, topical steroids | ||
***Triamcinolone 0.1% - Adults | ***Triamcinolone 0.1% - Adults | ||
Revision as of 16:01, 4 January 2015
Background
- Mild inflammatory exanthem
- May be caused by HHV 6 and 7
- Most common 10-35yr old
- Not contagious
- Spontaneous resolution occurs w/in 4-12wk
Diagnosis
- Begins with single, "herald," patch (salmon-colored, fine scaling)
- Followed in 1-2 weeks by generalized diffuse papulosquamous rash mostly on trunk
- Secondary rash with fine scaling oval macules and plaques following Langer Lines ("Christmas tree" pattern)
- Pruritus can be moderate to severe
DDx
- Psoriasis
- Tinea corporis
- Usually not as widespread
- Pityriasis versicolor
- Also has fine scaling but KOH is diagnostic
Treatment
- Lasts 8 to 12 weeks[1]
- Reassurance about the self-limited nature
- Natural sunlight may speed up resolution
- Pruritus[2]
- Antihistamine, topical steroids
- Triamcinolone 0.1% - Adults
- Hydrocortisone 1% - children)
- Other
- Zinc oxide
- Calamine lotion
- Systemic steroids are generally not recommended.
- Antihistamine, topical steroids
- Rash or pruritus beyond 12 weeks: reconsider original diagnosis
- Consider biopsy to confirm the diagnosis
Disposition
- Discharge
Source
- Tintinalli