Tea Tree oil (from Melaleuca alternifolia) and Eucalyptus oil (from Eucalyptus citriodora) are known for their antimicrobial, and anti-inflammatory activities.  They have a long history of use by the Australian Aborigines as natural remedies for a wide variety of skin conditions.

DIRECTIONS FOR USE: At the first sign of cold sore symptoms (tingling, burning or itching), place 1–2 drops on the finger tip and apply to the affected area 3 or 4 times daily.