Diflucan (fluconazole) is intended for the treatment of a wide range of fungal infections, including infections of the lungs, blood, abdomen, vagina, mouth and throat. It’s important that you clearly understand the difference between mild and more serious side effects Diflucan may cause. If you have headache, stomach pain, diarrhea and dizziness there is no need to get worried, as these few side effects are likely to disappear on their own. At the same time there are such serious side effects as unusual tiredness, seizures, dark urine, itching, trouble breathing or swallowing, unusual bruising or bleeding, loss of appetite, yellowing of the skin or eyes, rash, hives, flu-like symptoms, upset stomach, and swelling of the face. These should be reported to a qualified health professional as soon as possible to prevent the situation from getting worse. Make sure you tell your doctor about any other symptoms you develop. Keep this medicine out of reach of children and other people to whom it was not prescribed. Even if you think someone has the same symptoms and requires Diflucan do not share your drug with them, as every person must first be examined by a qualified professional before taking this drug