Diflucan is considered the most effective antifungal drug. Adults are advised to get 200-400mg per day for fungal diseases. The duration of the medicine depends straight on the kind of fungal infection and their clinical reactions. For chronic fungal infections, the treatment can be stretched for over a year.
The drug does not have any addictive side effects. That is why there is no need to increase the dosage after a certain duration.
Make sure to not terminate the treatment suddenly as it can lead to severe side effects. As soon as you begin seeing improvement, you can slowly reduce the dosage of the medicine. The fungal infection may get relapsed if the treatment is terminated quickly. Take the doctor’s advice before reducing the dosage for better results.