Ibuprofen and muscle relaxants or booze (not both!) can help initially then a chiropractor or physical therapy from there.Walking can help keep things loose and after it eases,exercise that strengthens your core muscles can help keep it at bay.One thing I've learned the hard way,is the second it starts to twinge,stop doing whatever you're doing.
I use "Zostrix" or any of its cousins-It is a capsaicin topical remedy made with cayenne pepper, so use gloves, and don't get it where you don't want it!