Painful swallowing and oral lesions are symptoms of Candidal esophagitis, a fungal infection of the esophagus. Candidal esophagitis is treated with antifungal medications. Recovery is dependent on extent of immunosuppression. Update Date: 11/01/2007Kenneth M. Wener, M.D., Department of Infectious Diseases, Lahey Clinic, Burlington, MA. Review provided by VeriMed Healthcare Network.