Hi,what Is The Best Muscle Relaxer Next To Soma That

Hi,what is the best muscle relaxer next to soma that I can take.i have had 2major back surgerys,and I have tried robazin 750mg and its not working.can u plz help me.i have had this very bad pain for 16 yrs,and still need more surgerys neck and low back...I have been off soma for two yrs now,i need something that will work with my pain meds.can u plz help me....v