Thanks for posting your query.
Your husband having acute cervical pain
following heavy weight lifting.So he might having prolapsed intervertebral disc(PIVD).
I suggest you to consult an orthopaedician nearby for a detailed examination. You may get the X-ray/MRI
of the area affected under his/her guidance.
In the interim, take anti-inflammatory drug like motrin
to reduce pain and inflammation. Avoid lifting and rest well.
Hope I have answered your query.
Wishing you good health.