Yes, BB, but we are being advised to consult the pharmacist. The adverts seem to be trying to explain the depth of training an knowledge they have. This thread is more about someone's own knowledge rather than the pharmacists.
As far as I can see they want to use this knowledge as a sort of triage. That means the pharmacist may be able to suggest something you can buy over the counter, a GP appointment or even to go directly to A & E. I would certainly rather have something checked out than end up using the wrong thing.
Personally I would rather make a decision based on knowledge rather than so called 'common sense' with no training or knowledge behind it, i.e., mine. I think common sense would once have suggested "eye of newt and toe of frog" but thankfully there is more science to it now.