Painful blister under callous on heel pad. Help!

Conventional wisdom says don't pop blisters, but if you can get through the skin and it's really bothering you, consider doing so. Keep the area as clean as possible if

*you go this route.

*I used to get terrible blisters because I wore cotton socks. I switched to SmartWool, and the problem went away. Really, any wool should help, provided it isn't too thick. Does an excellent job of wicking away moisture. Plus, air pockets give you a bit of extra cushioning.

Thanks for the response. I usually wear polyester socks. I only have blister issues wearing carbon racers (this has happened in both ASICS and Vaporflys), so I just purchased a pear of SmartWool socks.