Monistat 3 is a concentrated form of vaginal-yeast-infection treatment that lasts for 3 days, while Monistat 7 is a less-concentrated drug used for 7 days by the patient. The Monistat 3 contains a dosage of 200 milligrams of Miconazole. Monistat 7, on the other hand, contains 100 milligrams, which is the lowest concentration of the medicine.
Miconazole is one of the most effective medications used to treat vaginal yeast infection. If the treatment does not show results in the allocated 3 or 7 days, there might be some serious medical condition. The 3-day treatment is a bit pricier than the 7-day treatment.