UVA and
UVB are present in
sunlight, but "unlike UVB, UVA is relatively not effective on
Psoriasis unless used with a
light-sensitizing medication psoralen, which is administered topically or orally, says the
National Psoriasis Foundation." This process, called
PUVA, slows down
excessive skin cell growth and can
clear psoriasis symptoms for
varying periods of time. Stable
plaque psoriasis,
guttate psoriasis and
psoriasis of the palms and soles are most responsive to
PUVA treatment. The Las Vegas Skin and Cancer Center (
LVSC) has a PUVA clinic in which they offer the latest in
light therapy and
Psoriasis treatments.
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