In a subgroup of patients (hand-foot skin reaction (HFSR) study subgroup), this study also aims to test if topical corticosteroids as preventive counter-measure applied to hands and feet for the first 3 weeks during sorafenib treatment reduce incidence and severity of HFSR compared to a matching, corticosteroid-free cosmetic ointment, measured over the first 3 and 6 weeks of sorafenib treatment.