Methods of treating humans or animals having various conditions are disclosed which include administering a cyclosporine component. Among the conditions treated are dry mouth syndrome, verruciform xanthoma, achlorhydria, mucous cysts, oral submucous fibrosis, oral nevi, cancer of the oral mucosa, maloplakia of the genito-urinary tract, vulvovaginitis, helicobacter pylori infection, duodenal ulcers, peptic ulcers, conditions affecting the uterus and appendicitis.