Phototherapy and Patch Testing

Experience and facility with all modes of phototherapy are important aspects of the field of dermatology. Residents, particularly during the Day Treatment Center assignment - in which you will round daily for two months on patients receiving regular phototherapy - you will observe and learn about phototherapy treatment. The importance of and uses for patch testing as an important diagnostic technique are included in this assignment.

Over the three-year residency, the faculty will teach:

  • Irradiance and explain exposure dose.
  • Minimal erythema dose (MED) and minimal phototoxic dose (MPD).
  • Measurement of MED and MPD and plan a treatment program based on it.
  • Adjuvant therapies for UVB and PUVA.
  • Management of treatment gaps, adjustments for excessive exposures, and conversion to maintain therapy for UVB and PUVA.
  • Treatment of accidental overdosing of UVB and PUVA.
  • Management of non-psoriasis patients: PUVA or UVA-1 for morphea/ scleroderma; UVB for pityriasis rosea, renal or hepatic disease, atopic dermatitis, etc..
  • The procedure for routine and photo patch testing.


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