I have a persistent (two weeks now) pain in lower back; just above the hip and almost to the side. i assume it's a muscle strain. what can be done?

Low back pain: There are a number of things we don't recommend, one of which is imaging (xrays, CT scans, MRIs etc) for back pain in 1st 6wks unless have red flag symptoms/signs. Check out http://www.choosingwisely.org/doctor-patient-lists/american-academy-of-family-physicians/ & http://www.mayoclinic.org/diseases-conditions/back-pain/basics/definition/con-20020797. Avoid aggravating activities but no bed rest!