Hello I hope someone can help my mum has been diagnosed with primary sclc spread to brain and liver she has been given 6 to 8 weeks that was 2 weeks ago she has been on 8 mg dexamethasone now cut down to 6 mg per day she has had a terrible sore back since she had a liver biopsy would it be possible for the doctor to increase her dose of dexamethasone again or is there a reason why she has to be cut down,Thanks in advance.