It was expensive because I was worried about the missing arm, but I put it in the 2cc arm of Voluma, and after that, I cut the amount and get it once a year. Sometimes the skin on the area where the filler was hit comes up so that the skin is not visible ㅜㅜ It would have been a side effect that would not have been there if it hadn't been hit... Even with such a small procedure, there are side effects, but I guess real plastic surgery should be careful.