you can mix it but its tuff to find something else that requires everyday injections like the winny(except fina). but you can try dilluting it with some b-12. also you can try running the syringe under warm water once the winny is inside to warm it up. this helps me sometimes. also when im shooting winny i try to only shoot in my shoulders(obviously not into a lump), i notice it seems to hurt less there . also after hitting the same muscle a couple times it tends not to hurt anymore. but other then that i know that shit hurts, i use it everyonce in a while and i cant move the first couple days till i get used to it.