Hello Reshma, we have very effective and best medicines in homeopathy for ankylosing spondylitis. may i know since how long are you suffering from this problem?? Do you have any reports??It is an auto immune disease. where chronic inflammation of the spine occurs. it exists for a period of time later there would be bony changes where the fusion of vertebrae and spine occurs.which leads to stiffness. further the fusion of spine mobility is going to reduce and stiffness increases which leads to restricted movements of spine like unable to move or turn around. here the treatment is required in deeper levels where the complete case history should be taken and totality is selected.homeopathy medicines strongly suggested for better control and long term management .for more details and consultation contact us on :9515869820