Hot/Cold Gel Wrist Support. This gel wrist support has everything you need in one; it provides support, compression, hot and cold therapy, and can be worn on your left or right hand – we love it! Place the gel pack in the fridge to cool for therapy to strains, sprains and bruises. Or, place the gel pack in the microwave to apply heat therapy to aches and pains. And buy this Hot/Cold Gel Wrist Support Now £9.99.