Use Zovirax lip cream 5% is intended for the treatment of viral infections of the lips and facial skin caused by the Herpes simplex virus (recurrent labial herpes). How to take The cream is for external use only. It is recommended to apply a thin layer 5 times a day (approximately every 4 hours, except at night) to the affected areas and adjacent skin. Treatment should begin as early as possible, preferably at the first signs of the disease (itching, burning, tingling, redness, or a sensation of tension). Treatment can also be started at later stages (papule or vesicle). The duration of treatment is at least 4 days. If healing does not occur, treatment can be continued for up to 10 days. If healing has not occurred within 10 days or symptoms persist, a doctor should be consulted. The cream should be applied either with a cotton swab or clean hands to avoid additional infection of the affected areas. Contraindications Hypersensitivity to acyclovir, valacyclovir, propylene glycol, or other components of the preparation is a contraindication to its use.