Higher Occurence of Cold Sores After Lip Injections?

Dear SLK350:

As you are aware your cold sores  on your lips (herpes labialis) are triggered by the trauma (although mild) to your lip.  I would recommend informing your physician of this recurrence such that recurrence is minimized with pre-treatment use of valtrex.  Best wishes.

Any stress such as lip injections to the mouth area could cause a cold sore flare up. You are more likely to experience this soon after the procedure. To prevent this from happening you may be prescribed anti-viral medication before the injection. The months following your injections should not cause an increase in cold sore flare-ups.