Esophagitis: Esophagitis is an inflammation of the lining of the esophagitis. Causes of esophagitis are infection or irritation of the esophagus. Types of esophagitis include Candida, herpes, acid reflux, eosinophilic esophagitis and more. Some symptoms of esophagitis include heartburn, dysphagia, acid reflux, sore throat, indigestion, chest pain, bad breath, nausea, and vomiting. Treatment for esophagitis depends on the cause.