Very good point silverback.
Lazy I was out for over 6 months, I had to totally relearn to squat and I needed to do a lot of core work and stretching. I'm not a physio but depending on severity I would say a minimum of 8 weeks. You need to first get the muscles to relax then you need to ensure you will not agravate the injury again with poor form etc.
Judging by your posts your technique is poor and your core is weak, thats a great way to an injury.
If you really want some assistance feel free to PM me and I can outline exactly what I did to get back on track.