I'm a total pain baby and recently switched to using Apple Cider Vinegar (WITH Mother) for a natural antiseptic rather than alcohol for my shots. Braggs brand specifically.
Anyways, maybe it's placebo maybe it's not, but I spread a lot of it all over the injection site and idk what it does, but it makes the shot less painful. I go slow too as I'm scared of just jabbing the needle in, but yep. I think it reduces the pain. I also usually get all bumpy and itchy in the shot area, but since I switched to ACV with mother, that doesn't happen anymore.
You should read up on the medicinal properties of it, it's great.