One more thing to add here...the patient in the photos you refer to in your posts was treated with Efudex 5% twice daily. Therefore your comparison to his 5th day (10 applications) photo and your 15th day (15 applicataions) photo would probably be about right.
Remember Carac is not as strong as the Efudex 5%.
The other thing we all need to take into consideration when comparing notes is that everyones skin texture, tone and damage is different.