Hello lady45788,Thank you for sharing your question with us. In relation to your question saline injection in or around an area of previously placed filler will not have a negative impact on it. However I'm not really sure of the reason or purpose to have saline injections?? Be well.
Thanks for your question. I am not sure why you would want to have saline injected at all given that it will not remain in that area for more than a few hours to one day. Nonetheless, it shouldn't have any effect on the filler that was injected previously. Best of luck to you.