I had it too - though for some mystery reason it was really bad for only a few days, then not so bad at all (i suppose it helped knowing how bad it could be, so i knew this was nothing in comparison)
the things i can only guess helped:
rest. so obvious, and unfortunately so un-obtainable for most people, esp when you have other kids to look after, but getting as much help from relatives, friends, a temporary nanny, whatever it takes, and whatever you can manage is the best advice i can give.
Arnica 30's. have no scientific or medical expertise to back this up, but i started downing arnica morning noon and night as soon as it was diagnosed, and it did seem to make a miraculous backtrack. mind you, that could have been the rest i was (v gratefully) able to get.
have soooo much sympathy for sufferers, esp those of you who obviously had it way worse than me...
good luck and best wishes