I think this is Cervical Radiculitis.
Treatment Advised is
Tab Ultracet Semi BD
Tab Zerodol MR at Bedtime
Tab Defcort 6mg BD
Tab Gabapin NT at bedtime
Cap Omez D BD
Tab Evion LC BD
Soft cervical collar ( She should wear this at all the times, she is not lying on bed)
Gentle massage of neck
Do this for 5 days
She should totally abstain from any neck bending activities. No pillow should be used. Mobile phone should be totally withdrawn for few days, even for taking calls.
Next Steps
If not relieved: Go for MRI Cervical Spine.
[ but I think the above mentioned treatment with definitely give her relief]