Fungal infections are caused by minute or microscopic organisms that fall under the class of organisms called fungi. There are many types of fungus and a select species of them are able to infect the human body and its parts and cause discomfort, pain, or even death. Although most fungal infections are a question of personal cleanliness or proper hygiene that mostly manifest on the skin and can be treated using regular antifungal ointments or creams, there are however some fungal infections that require more serious treatment. A serious antifungal treatment comes in the form of a drug which you ingest orally so that it can do its treatment from the inside of your body. The most effective and highly sought after antifungal drug is Diflucan that is made in the United States.