Diagnosis of psoriasis vulgaris of any severity with at least three discrete lesions in optically non-obscured skin located on torso, abdomen, dorsum, legs, arms, face or buttocks.
You may not be if
Pregnancy or breastfeeding.
Rheumatoid and psoriatic arthritis
Fitzpatrick skin type \>4.
Known allergy to 5-aminolevulinic acid (5-ALA) or light sensitivity.
Autoimmune disorders.
Heavy smoking.
Diabetes mellitus type 2
Active bacterial or viral infections in the treatment area
Recent use of isotretinoin
Morbid obesity
History of hypertrophic scaring or keloids
History of complicated wound healing
Body dysmorphic disorder
Use of anti-coagulants
Use of cyclosporin A or similar immunosuppressive medication
Increase in disease severity during the preceding 8 weeks.
If treatment area is on the legs: Severe venous insufficiency, severe lymphoedema or angiopathy.