Can zovirax (acyclovir) be used with a lip balm?

Separately better: The goal of herpes simplex eruption treatment is to dry the area as fast as possible. A lip balm will keep it more moist delaying healing. Also, using a lip balm can possibly spread herpes to other parts of the lip. If you already used your lip balm on the area, hold off until hsv heals then get a new lip balm to use, preferably one with sunscreen. Sun exposure can trigger hsv eruptions on lips.

Cold Sore Treatment: I assume you are asking about zovirax (acyclovir) ointment, it also comes in an oral form, which is fine to use with lio balm. Be sure to rub the zovirax in well, wait a few minutes, then apply the lip balm. Know that oral forms of treatment, especially short course, high dose Valtrex (valacyclovir) or Famvir are more effective. Consult with your board certified dermatologist to review these options.

Yes: Will not spread herpes. The purpose is NOT to dry the lips! Perfectly safe and OK to use together. BUT ACYCLOVIR{ZOVIRTAX} OINTMENT IS A WASTE OF MONEY. It is effective only orally, and oral valacyclovir is better. This is an ANTIVIRAL. To dry the lips will impair healing, not help it.