Dear Peg
I would recommend trying Reiki. I learnt Reiki in 2001. Over the years i have been self treating regularly and giving it to my children as often as i can. Our health has improved tremendously over this time, we do not fall ill as often as we used to. If we do fall ill we recover much more quickly and without any complications.
Maybe your son's immune system needs boosting. Reiki is great at boosting our immunity.
What i would recommend is finding a good Reiki practitioner near you. Have your son receive a treatment every week for a few weeks. If he likes it and finds it beneficial, you could learn it and give Reiki to your son regularly. Depending on your son's age, he could learn it too and give himself Reiki everyday. Children respond to Reiki much more quickly than adults.
To find a good Reiki practitioner near you, you can contact The Reiki Association at www.reikiassociation.org.uk
If you are in London, I could help you. You can find information about me on my website www.reikiwithmamta.com
With best wishes
Mamta Nanda
Reiki Master - Usui Shiki Ryoho