Terbinafine can be taken for a few months need to be based on the location of the infection, the severity and the degree of infection, can not be generalized. Terbinafine is a more common antifungal drug, oral this product is only used for the treatment of large or serious skin fungal infections and Candida albicans and other Candida caused by skin yeast infections, the treatment of different diseases, the course of medication is also different. For tinea pedis between the toes or on the metatarsal toes, a typical course of treatment takes 2 to 6 weeks, treatment of tinea corporis, tinea cruris and cutaneous candidiasis often requires 2 to 4 weeks of medication, treatment of tinea capitis takes about 4 weeks, and the course of treatment for nail fungal disease is usually 6 to 12 weeks, and most nail fungal infections tend to take longer to treat than fingernail infections. The main adverse reactions to terbinafine tablets for oral administration include gastrointestinal symptoms such as bloating, indigestion, and nausea; rash, hives, and fever. Terbinafine is contraindicated in people who are allergic to terbinafine and other ingredients of this product. Contraindicated in patients with chronic or active liver disease. Note that oral terbinafine should be taken for treatment only if topical treatment is not possible. It is not recommended during pregnancy and breastfeeding. There are many drugs for treating fungal infections with different indications, so if you have a fungal infection, you should choose the right drug for treatment under the guidance of a professional doctor and avoid self-medication.