I'm a big BioFreeze fan. (I get the medicine shoppe brand for $4.99 though.) BUT... I tried the O24 since CVS pharmacy had it on sale for $14.50 I really didn't think it would work. Nothing besides the Biofreeze has ever worked on me. But it did. I've been using it on my hands and I can type again!! My back has been KILLING me the past few days...so bad my Oxycodone just barely takes the edge off. Last night DH put some all along my spine and within minutes the pain WAS GONE. Hubby said I looked at him, said wow it's helping, and fell right to sleep. It's worth a try... achy P.S. Yes, it does smell like camphor, but after 20 mintues you can wash the area and remove the smell without hampering the pain relief!!