pharmacist.
UV light doesnt just hide acne (although it does help make blemishes less prominent, and hide deeper active scarring from previous pimples) it actually reduces the number and severity of pimples/pustules. it is a real treatment.
also, doxy works well on some people.
dermatologicals are funny, you have to tweak and try a few things depending on the patient. some benefit greatly jsut with sun. others need an accutane. others need a moisturiser. most just need to wash their sheets more often.
your doc is definitely on the right track, you dont have much to lose, and lots to gain.
cheerios