i got a cold sore last week and took the 2grams twice a day for one day. it turned out not being that bad... then today i woke up (4 days later) and felt that tingling feeling again in my lips so i took 2 grams of valtrex right away. but what i noticed was that my whole top lip was basically covered and then part of my bottom lip was covered too!!! then by 4 o'clock this afternoon i noticed the other side of my lip was starting to tingle!!! so basically all of lips are covered in cold sores and im really upset about this and NEVER have had it like this... can i take more then the 2 grams twice a day that is recommended since this is so bad?