L.S.
First - I applaud you for making the effort to find a natural way to help your child. It's not always the easiest or cheapest way to go. I have not had personal experience with ADD with my own child, however I have seen a therapy be helpful for others, and done a lot of research on this subject. What you may want to look into is craniosacral therapy. It is safe, gentle, and effective, and extremely beneficial for childhood issues. It is a very gentle form of specific touch to affect the flow of fluid in the brain and spinal cord. Sounds wacky at first...until you feel the results for yourself, or see the results. And when you research it more thoroughly, it makes sense, as a nurse you will easliy understand the physiological theory.
Do a bit of research and you will see that it is being used more and more for issues children face...colic, feeding issues, ADD, autism, etc.
I can recommend the following sites:
www.upledger.com - a whole section on managing kids issues
www.osteodoc.com/birthtrauma
www.craniosacral.com
Yes, I have had this therapy myself and my son has had it as well. It probably won't be a cure-all in one session, it is not a magic pill. Make sure you work with someone who is specifically trained. I would recommend finding a practioner off of the American Massage Therapy website, because PA requires no licensing so it is up to the consumer to verify the education and qualifications of the practioner you choose.
Also, you may want to consult a naturopathic doctor -ask around at chiro's or health food stores or massage therapists, for a referral, to find out proper dosages of any herbs or supplements.
In addition, I can personally recommend NAET (an accupressure technique) to really help with odd health issues. Google your way through "natural health" or "alternative health" for children or specifically for ADD/ADHD and you will be astounded at the different things you can find that may be helpful for your child. The trick is finding prationers you trust, making sure what you try is safe and can't do any harm, and finding the right combination...every person is different, every biochemical makeup is slightly different, it takes some time to tweak a regimine that keeps a body in balance.
Good luck to you, and congrats on the home daycare business, may it flourish.