Prostate cancer campaigner uses pioneering ‘scalp cooling’ treatment to keep hair during chemotherapy   A Cardiff man, who founded The Red Sock Campaign to help raise awareness of prostate cancer, is using a pioneering treatment to help keep his hair during chemotherapy. Over the last decade, Keith Cass has vigorously campaigned to raise awareness of prostate cancer to support men and their families living with the disease. This month, Keith is using the Paxman Scalp Cooler as part of…