There are a variety of treatments available for nail fungus including topical medications and oral drugs. About 50 percent of fungal infections can be cured by oral medications such as terbinafine. A more uncommon treatment may involve removal of the infected nail, as stated by WebMD.
When oral medications are combined with topical drugs, the success rate tends to improve. The possible side effects of oral anti-fungal drugs include skin rash and liver damage. If an individual has congestive heart disease or liver damage, his doctor may also recommend blood tests to monitor progress on the medication, according to Mayo Clinic.