I'm not sure what you mean by "others" here, but most drugs have side effects. AFAIK, until all of them have been sorted out, using an un-FDA-checked drug could heal your skin OR give, for instance, anaphylactic shock to all, some, or just one single patient.
I understand that if "this was approved in Scotland etc." then it was already tested by some other committee. However, what if Scotland has a different list of drugs, excluding one that's approved in the US and that could lead to serious problems when used together with this spray?
I understand that if "this was approved in Scotland etc." then it was already tested by some other committee. However, what if Scotland has a different list of drugs, excluding one that's approved in the US and that could lead to serious problems when used together with this spray?