question: I have a history of cold sores, and am currently dealing with an outbreak.  I have been using Abreva, but I believe there is an infection because my lip and glands under my chin are extremely swollen.  The sore is not healing as quickly as it should be.  This has happened in the past and my doctor prescribed an antibiotic to help with the infection so it didn't spread.  What antibiotic will help with this that I could call into my doctor for?