Suggest Remedy For Severe Neck Pain

MY WIFE, ABOUT A WEEK AGO HAD VERY BAD NECK PAIN ON THE RIGHT SIDE WHERE THE NECK MEETS THE BACK OF THE HEAD, THIS LASTED A WEEK AND WAS SO BAD SHE WAS CRYING, THEN I HAD THE SAME PROBLEM, IN THE SAME PLACE, I HAVE HAD CROOKS IN THE NECK BEFORE, THIS IS MORE INTENSE, HAS LASTED 4 DAYS NOW, NOT GETTING BETTER. WONDERING IF WE HAVE GOT INTO SOMETHING BAD, ie: BAD OR SPOILED FOOD OR SOMETHING THAT HAS CAUSE THIS PROBLEM, WHAT MAKES IT WIERD IS SAME PROBLEM IN THE SAME PLACE FOR BOTH OF US.