Valtrex Cream Dosage For Shingles. The recommended dosage of valtrex for treatment of cold sores is 2 grams twice daily for 1 day taken 12 hours apart. Welcome to the national library of medicine, the world’s largest biomedical library and the center of biomedical informatics and computational biology at nih.
For recurrent outbreaks of genital herpes, valacyclovir works best if it is used within 24 hours after the symptoms begin to appear. Swelling in your face, hands, or feet. The recommended dosage of valtrex for treatment of cold sores is 2 grams twice daily for 1 day taken 12 hours apart.