While photodynamic therapy (PDT) does not do much for pore size reduction, PDT can be a very useful adjunctive therapy for acne. The temporary oxidative stress brought to the skin by PDT can be helpful to eradicate bacteria responsible for acne exacerbation and faciliate sebaceous glands on the skin to respond better to conventional therapy such as oral antibiotics and prescription strength topical therapy.
Ideally, you should have PDT performed under the supervision of a board-certified dermatologist who has treated at least 100 acne patients with PDT as there is significant art and science associated with PDT protocol, i.e. incubation time (the amount of time Levulan is left on the skin) and the exposure time (the subsequent amount of time you are under the blue light therapy).
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