hi,
pillow between the knees is fine and calcium supplements may worsen the condition because calcium causes muscles to tense (including the heart muscle) and because muscular tension (caused by joint-misalignments) is what contributes most to a pinching of nerves followed by Pain we should not do things that makes our muscles harder make sense doesn't it.
I recommend my patients magnesium and st. john's wort for relaxation
Magnesium is an antagonist to calcium!
The supplement industry is doing a good job to sell calcium with plenty of unproved claim about calcium benefits.
Check my website to learn about Back Pain and a new approach to it:
http://www.dorn-method.com

Blessings
Thomas

I recommend Massage Therapy for backaches and if they have a chance to see a Chiro and / or an Osteopath to see if they have any special problems.

I also recommend one of my Special Treatment which is seen on my Web Site at: " http://painreliefhealer.webs.com/ " which will relieve the swelling and the pain.

My Email Address is: " painlessjoe@yahoo.ca ".

Good Luck