CO2 injections and radio frequency after liposuction? (Photos)

I am 3 months post op & I have a lot of lumps in my stomach from the liposuction, I was wondering how long will it take to resolve naturally or if co2 injections really work? They are quite expensive so it’s a last option. Also will radiofrequency help my loose skin? I’m not happy with my results and I really hope there is a way to improve some