Can this treatment be used for folliculitis?

They sound very similar. What's the difference?

I have several different physicians wanting to use different types of lasers to activate the PDT and I'm not sure if the light source will make some sort of difference.

My dermatologist has diagnosed me with basal cell skin cancers on my face and wanted me to do Carak Cream. I was then told about PDT . What is the healing time as compared to Carak Cream? What do I expect?

What is the general number of treatments one needs to undergo to see results with photodynamic therapy?

Is Levulan a brand name of photodynamic therapy? What is it exactly?

I see many dermatologist are offering LED light therapy treatments. I have also noticed that salons are offering the same treatments. What is the difference besides cost? And is LED considered a laser treatment?

If I have used hydroquinone directly on age spots, which has only stung and made them darker. Have I damaged my skin? Can I do laser to remove the spots? What would you recommend?

I have mild to moderate psoriasis and would like to try treatment options other than internal medication. Is photo therapy effective, and what other options do I have>