Please enable JavaScript.
Coggle requires JavaScript to display documents.
Pityriasis
rosea (Prognosis (Self limiting
(usually 2012w, can take 5m)…
Pityriasis
rosea
Prognosis
Self limiting
(usually 2012w, can take 5m)
-
-
-
-
Diagnosis
History
DH
Current meds (?drug reaction), allergies
SH
Occupation, smoking, alcohol
-
PC/HPC
Scaly red lesion, initial large patch then spread,
recent viral infection (e.g. URTI), no red flags
Examination
Dermatological
Scaly, red, well-defined, flat lesions
Initial large patch, disseminated symmetrical lesions
Investigations
Bloods
Microbiology - HIV (seroconversion), syphilis (secondary)
Immunology - SLE (ANA etc.)
Bedside
Obs (sats, RR,, HR, BP, temp)
-
-
Management
Conservative
-
Information and advice
Rash may worsen before resolving
Can take 2-3m to resolve, no treatment neeeded
May be some hypo/hyperpigmentation but no scar
Medical
Emollient
Indication: itch
E.g. E45, Eucerin
MOA: hydrates skin, reducing irritation
Topical steroid
Indication: itch
E.g. hydrocortisone 1%, clobetasone 0.05%
MOA: reduces inflammation; use for up to 4wk
Antihistamine
Indication: itch
E.g. chlorphenamine PO nocte
MOA: inhibits antihistamine release, reducing itch,
also sedative aiding sleep
Definition
Self-limiting skin rash causing
distinctive, scaly, red lesions
Clinical
presentation
Rash
Initial herald patch >2d beforehand (usually trunk)
Scaly, erythematous circular/oval lesions
Flat/slightly raised, symmetrical
Trunk and proximal limbs
