Triamcinolone acetonide as an intra-articular injectable has been used to treat a variety of musculoskeletal conditions. When applied as a topical ointment, applied to the skin, it is used to mitigate blistering from poison ivy , oak, and sumac, [ citation needed ] . When combined with Nystatin , it is used to treat skin infections with discomfort from fungus, though it should not be used on the eyes, mouth, or genital area.  It provides relatively immediate relief and is used before using oral prednisone . Oral and dental paste preparations are used for treating aphthous ulcers .