For use only after diagnoses by a physician, as follows: Cold Sores/Oral Herpes: Take 3 tablets immediately at the first sign of burning or itching and then 3 tablets three times daily until symptoms disappear. Genital Herpes: For severe genital herpes sufferers, take 3 to 5 tablets 3 times daily for prevention of outbreaks. If you have an outbreak that does not subside within 10 days, consult your doctor. For mild to moderate symptoms, take 3 tablets immediately at the first sign of burning or itching, and then 3 tablets three times daily until symptoms disappear. If symptoms do not subside within 10 days, consult your doctor.