Drinks lots of fluid to flush out the toxins the massage releases! If you don.t you will feel sick and not want to go back!
Sounds like it isn't serious, and I don't say that lightly... if it was spinal, I would suggest seeing a Physician instead of a back cracker. If it's muscle, an NSAID will help... even Flexiril will help (presrciption needed.
I have severe back pain (degenerative disk disease)... my second go round with this stuff. The firt time, before fusion of my L5/S1, I tried accupuncture for free with a coupon... that was an interesting experience. It caused "ghost" feelings... like something was touching your toe, you look down, nothing there...
this went on for the whole 45 minutes! I did a few sessions, but it didn't help my pain... gave me something to talk about... LOL!!!