Insulin users

Bum cheek, I find holding pen under my armpit for a few minutes heats it up and it is less likely to hurt

I have injected in my stomach which I find less painful,however I find different size needles can help with decreasing pain especially in the thighs I use 4mm needles which I find to be the best for painless injections and making sure u inject in the fattiest area of your thigh usually the top of your thigh is the least painful. Hope this helps.