Hi I have to disagree and perhaps we should agree to disagree! I have a LLLT (low level laser therapy) unit and using this equipment is most definitely contra-indicated in cases of thyroidism. I am not saying that I believe all treatments are contra-indicated but you do have to be careful. It is an autoimmune disorder and people can also be prone to other conditions which we must be aware of. I do not believe it is something that we should totally disregard.