In Dystonia the main problem is involuntary movement of the neck to one side or other. The movement causes the pain so you must have movement and pain for diagnosis of dystonia. The best drug is Pacitane. If 4 tab are not enough you can try 5, 2 morning, 2 afternoon and 1 at night and then increase to 6 and can then increase slowly to even 10. With that you may use Tryptomer 10 mg, 2 at bedtime. If all this does not help you may see a neurologist for Inj. of Botox in muscles of neck. This may cost Rs 15000/- at a time and may have to be repeated every 6 months, so most patients prefer to remain on oral drugs only.