Soothelip Aciclovir Cream 5% for Cold Sores Soothelip Cream is used for the treatment of cold sore infection of the lips & face. Soothelip Cream is most effective when used at an early stage, preventing the cold sore forming properly. However, Soothelip Cream also speeds up the healing process of developed cold sores. Ingredients The active ingredient is Aciclovir (5% w/w). The other ingredients are Cetyl Alcohol, Dimethicone, Heavy Liquid Paraffin, White Soft Paraffin, Polyethylene Glycol, Propylene Glycol, Sorbic Acid, Water. Directions Apply to the cold sore or impending cold sore as early as possible after the start of an infection. Apply 5 times daily at Approx. 4 hourly intervals, omitting night time applications. Treatment should be continued for 5 days. If, after 5 days, healing is not complete then treatment can be continued for up to an additional 5 days.