Different diseases take itraconazole time is different, 7 ~ 30 days ranging, need to follow the doctor’s advice according to the actual situation. Itraconazole has an antifungal effect, commonly used in the treatment of skin fungal disease, nail fungal disease, vulvovaginal candidiasis, fungal disease keratitis and other diseases. It is usually required for 7 or 15 days for skin fungal diseases and 7 or 30 days for tinea pedis and tinea pedis. Vulvovaginal candidiasis requires 1 or 3 days of use, and fungal keratitis is usually 21 days. The duration of drug use should be adjusted depending on clinical efficacy and condition. Common adverse reactions dizziness, headache, abdominal pain, diarrhea, etc. It is prohibited for those who are allergic to the product, and prohibited from combining with methadone, quinidine, ergometrine and other drugs. It is contraindicated in patients with evidence of ventricular dysfunction and pregnant women, except for the treatment of life-threatening or serious infections. It should be noted that itraconazole can be taken with milk or diet cola after a regular meal to promote drug absorption. Itraconazole should be used under the guidance of a medical professional to avoid adverse reactions.