Dad gets pins and needles after chemo

Hi my dad has recently been diagnosed with terminal pancreatic cancer and secondary liver cancer. He is currently undergoing chemo and experiences numb fingers and toes and the feeling of pins and needles, I try massage them as much as possible to help him but is there anything else I can do? 

Also even tho his cancer is terminal is there still a chance he can be cured? Is there any hope? Please, any advice is welcome x