Checked a few threads already and all blister topics focus on the feet. I'm currently training to join but having worked forever in retail my hands never saw much use when it comes to lifting etc. Now the problem I'm having is I'm getting serious blisters all over my hands when I'm doing heaves or practising jerry can carries and consequently my grip is letting me down. Any good fixes or cures for this or is it a case of work through them until they toughen up. As usual any advice or pisstaking is appreciated.