Just had a cortisone shot, can I still have lipo done in the injection sight?

This is a question for your surgeon but it's likely not an issue. Just check with your plastic surgeon. @justinyovinomd 

I recommend following up with your Doctor about their protocol for having liposuction after a cortisone injection. For best results with liposuction, I recommend a hi definition procedure like VASER liposuction. I use VASER HI DEF with ThermRF and fat grafting to get the most fat removal, skin tightening, contour and definition. This combination will give you the most toned result. I recommend getting a formal evaluation with a hi definition physique expert. Best, Dr. Emer

Thanks for your inquiry, I suggest you ask your surgeon.  Frankly only he/she can answer this question, good luck.