RecruitingDevice studyStudy Of Cold Cap Therapy For Prevention of Hairloss in Pediatric Patients Receiving Chemotherapy For Non-Malignant Indications and Solid TumorsThis study is being done to see if the Paxman scalp cooling device can prevent hair loss in pediatric patients receiving chemotherapy for non-cancerous conditions or solid tumors. Primary Objective * To assess the safety and feasibility of the use of a scalp cooling device in pediatric and young adult patients receiving chemotherapy for non-malignant conditions and solid tumors. Exploratory Objectives * To assess the incidence and intensity of chemotherapy induced hair loss in patients receiving chemotherapy for non-malignant conditions and solid tumors who have used a scalp cooling device.