Hello and thanks for the query
Spine is a very important part of our body and any injury
to this part has to be taken serious. Complete bed rest
is the best treatment for back ache. Go for the X-ray of the part and Consult your doctor immediately. Rule out any bony injury and other related issue.
Till you consult your doctor wear Lumbosacral belt and Cervical collar
and restrict the movement of the spine as much as you can. Can take analgesic/ muscle relaxants and anti-inflammatory drugs. Hot fermentation of the part reduces the pain but do not massage
Hope this will help you. Consult your doctor and get your X-rays done.