San Diego Photodynamic Therapy doctors

Based on your description you may want to consider treatment with a pulsed dye laser. I feel it is superior to both laser genesis and IPL for reduction of facial rednes and veins. I do not routinely use PDT for facial redness - that seems like overkill to me. PDT is best used for acne and actinic keratosis (pre-cancerous skin growths).  Treatment with the pulsed dye laser usually has limited downtime and risk. PDT causes extreme light sensitivity for 24-48 hours and may have considerable discomfort. I would not recommend it for facial redness alone. Also a three hour incubation is quite long and if you have very reactive skin as you say then you might have a prolonged recovery and significant discomfort post treatment.  Good luck. 

Photodynamic therapy is a chemical reaction FDA-approved for the treatment of actinic keratoses.  PDT can also be used to treat acne, rosacea, broken blood vessels, enlarged oil glands, and brown spots.  PDT describes a chemical reaction that occurs when a solution (Levulan) in the presence of oxygen is activated by light.  Abnormal skin cells (such as precancerous cells) are targeted and destroyed, revealing improved skin.

A published medical article demonstrated that sebaceous hyperplasia (enlarged oil glands) respond favorably to a series of PDT treatments.  However, PDT will not permanently reverse your likelihood to develop new lesions.  Maintenance PDT therapy or other destructive treatment options may be necessary from time to time to keep your skin clear of enlarged oil glands.