Persistent neck pain may he associated with lower neck and upper back muscle strain..
Sometimes, it may be due to continuous looking in the same direction while working..
Next Steps
You can start with hot fomentation, take analgesic with muscle relaxant tablet, go for X ray of Cervical spine if pain persists. You can also start physiotherapy including SWD, Local US..
Health Tips
Try to take frequent breaks after every hour atleast for 5 min. for neck stretching exercises..You may also use a Soft cervical Collar for support...