There are many kinds of treatment for keloid and hypertrophic scar. Nonsurgical methods, including intralesional corticosteroid injection, bleomycin, 5-fluorouracil (5-FU), and cryotherapy, are recommended for scar treatment due to high recurrence after surgical excision.4 In nonsurgical methods, intralesional corticosteroid injection can be used as first-line treatment for patients with keloid or hypertrophic scar. It is known that corticosteroids, such as triamcinolone acetonide (TAC), can lead to reduction of collagen andformation of glycosaminoglycan. In addition, they can suppress the inflammatory process by inhibiting proliferation of fibroblast and inducing hypoxia.5 Although patients with keloid or hypertrophic scar are usually treated with intralesional corticosteroid injection in twoor three injections per month, the treatment can take six months orlonger duration.6 Furthermore, this method may cause side effects including hypopigmentation and tissue atrophy.7