Fluconazole is an antifungal drug and is used clinically to treat candidiasis, including systemic candidiasis, mucocutaneous candidiasis, and vaginal candidiasis. In addition, it can also be used to treat cryptococcosis caused by novel cryptococcal infections, and can also be used to treat fungal diseases of the skin. In addition, it can be used for conjunctivitis and keratitis caused by fungal infections. It can also be used clinically to prevent the occurrence of fungal infections, for example, after a patient receives immunosuppressive drugs, fluconazole can be used for the prevention of fungal infections. This drug is completely absorbed orally and excreted mainly through the kidneys. The main adverse reactions of this drug can be seen as a transient decrease in platelets or neutrophils in the blood routine, as well as central nervous system symptoms such as dizziness and headache, and digestive system symptoms such as nausea and vomiting in some patients.