Integrity, Service & Excellence

We are pleased to announce that PENNSYLVANIA CENTRE FOR DERMATOLOGY is now a division of

Psoriasis Treatment Center: Phototherapy & Excimer

Narrowband UVB is the most common form of phototherapy used to treat various skin diseases such as psoriasis, eczema and itching. We offer two forms of Narrowband UVB treatment: Phototherapy and Excimer. Phototherapy is typically done for diffuse involvement on the body whereas Excimer targets specific areas of the body so that you can avoid unnecessarily treating areas of the body that are not affected by psoriasis/eczema.


Although these treatments are not a cure, they can effectively control and improve symptoms of your disease. Most patients require 2-3 treatments per week for 6-20 treatment sessions to see improvement. Typically, treatments start with only a few seconds of light exposure, increasing gradually, as tolerated.


More about Phototherapy and Excimer:


  • The most common side effect is sunburn. Certain drugs may increase the chance of getting a sunburn so please check with your provider before beginning therapy.
  • Any form of UV light, including phototherapy and Excimer, increase the incidence of skin cancer
  • Formation of Freckles/pigmentation
  • Damage to eyes (increasing risk of cataracts)- this is preventable with protective eye goggles worn during treatment
  • Flare of fever blisters/cold sores
  • Exacerbation of conditions such as lupus