stop betafos 
start oral steroid withdrawal with close monitoring of the 
 patient during withdarwal for fear of addisonian crisis
close monitoring of blood pressure, blood sugar, fever
investigations needed: CBC,ESR,AST,ALT,CREATININE,HBSAG,HCVAB,protein in 24 hr urine, TSH
add methotrexate if the investigations wil be normal by dose 12.5 mg every week plus folic acid as the patient isnot controlled on the current treatment
X ray lumbosacral vertebrae