Hi there
Just to add to what Dr Shee Yan has mentioned, if you are having red flag symptoms i.e. issues with bowel control, bladder control or numbness around the back passage (anus) please go and see someone urgently.
In many situations, unless there is profound pain or these red flag symptoms, most clinicians will suggest some sort of conservative management first, with pain killers, physiotherapy and sometimes nerve root injections. The latter can be done under CT, X-ray or ultrasound guidance.
Hope this helps.
BW
Dr Dinesh