Is there a lab test that can be done to determine if I have hsv type 1? The sore is gone, but the Dr. Who told me was a cold sore, seemed unsure.

HSV1 blood test. Yes, a blood test can tell if you are infected with HSV1, the usual cause of oral herpes (cold sores). Alternatively, you can wait and see if you have another outbreak, and the sore can be tested for the virus. If you google "cold sore" or "oral herpes", you can find photos of typical outbreaks to help determine if that's what you have.