Getting mouth blisters on corner of my mouth Not on

Patient: Getting mouth blisters on corner of my mouth. Not on lip just the corner. Not sure is angular cheilitis or cold sore. Used to get them all the time when I was a child. They seem to have been more prevalent within the past year. I squally use Abreva which helps but is there anything else I should use? Antiviral from doc?

Symptoms: Blisters, swelling, tenderness on corner of mouth

Doctor: