Hello. Thank you for writing to us at healthcaremagic Pityriasis rosea presents with scaly red patches on torso and proximal extremities. P. rosea is a hypersenstivity reaction to commonly to infectious agents like herpes virus (HHV 6 and 7) and certain oral drugs etc. The eruption is self limiting and resolves over time. There might be a few recurrences in the form of fresh eruption/ crops of new lesions. Various treatment modalities have been tried like topical steroid, oral macrolides and recently oral antivirals. UV light has a beneficial effect, particularly narrow band UV B phototherapy. However, the episodes are rarely long lasting to necessitate phototherapy and usually resolve by 3-4 weeks in most. I would suggest you to use a topical steroid lotion or cream, twice daily along with Oral erythromycin for 2-4 weeks. Regards