Intralesional steroid therapy has a definite, if small, place in dermatology and triamcinolone acetonide is the preparation in most common use. Such therapy may be used, particularly in nail disorders, keloids and hypertrophic scars, cystic acne, and to speed regrowth of hair in localized alopecia areata. Other conditions in which it has a place include cutaneous lupus erythematosus and sarcoidosis. There are some conditions where use is occasionally indicated and yet others where further trial is merited.