Has Anyone Ever Seen a Major Cold Sore Outbreak with Fraxel Dual?

I am 45. I have had two PDT (Blu-U w/levulan as well as IPL/V-Beam/Blu-U w/levulan). Both times, my chin broke out in cold sores. It literally looked like one big crusty, yellow, oozy cold sore. As a result my chin developed pores and a rough texture (scarring?). We pretreated the 2nd one with 2 Valtrex the day before and 2 the day of. I have had IPL, V-Beam, and Clear Brilliant and never had a cold sore. Fraxel was recommended to help with my chin scarring (not major). Worried about outbreak.