I am also suffering from sever neckpain. later I have consulted a allopathic doctor and he confirmed by seeing MRI scan that I have been associated with cervical spondylosis. He advised me to take Homeopath treatment. I am now under homeopathic treatment. So please consult your local doctor and find the reason for the neckpain and get proper treatment.
if you are sitting before computer more than a hour, change yourself by walking slightly from the computer for 5 minutes. or make a habit of taking a glass of water every one hour (this is advised by a ortho doctor of chennai)which makes us to move from the workspot for 5 minutes.