Reply To: Oral HSV-1 primary outbreak › Forums › Herpes Questions › Oral HSV-1 primary outbreak › Reply To: Oral HSV-1 primary outbreak August 27, 2023 at 8:25 am #82694 Terri WarrenKeymaster Blood will not impact the reliability of the PCR swab, no. hard to know what this lip thing might be from your description Terri