Background and objective: Facial cosmetic procedures are often associated with unsightly postoperative ecchymosis, and swelling, which may be a source of pain and anxiety for patients and can be difficult to camouflage. This study was conducted to assess the safety and efficacy of low frequency 3MHz pulsed ultrasound (US) in the treatment of ecchymosis and swelling after facial cosmetic procedures. Methods:   Thirty  patients  undergoing   facial  cosmetic   surgery  had  been  involved   and randomly divided into two equal groups. Ultrasound group (US-group, n=15), who received 3MHzpulsed US at 1.5 W/cm2for 5 minutes to each side of the face, and control group (n=15). Postoperative  assessment included  severity of ecchymosis,  postoperative  pain, and amount of facial swelling. All measurements were performed by blinded investigator at postoperative days (P0Ds).l,3,5,7,10 Results: Complete resolution of ecchymosis, pain and facial swelling was observed between POD5 toPOD7 in US group. While in control group resolution and reduction of pain and facial swelling occurred at POD7 to POD10. Conclusion:  Postoperative  US therapy  helps in  early resolution  and  reduction  of facial swelling and pain after facial cosmetic surgery with no reported complications or side effects