"you may want to see a doctor, sometimes these things need medicated" seems like reasonable, responsible advice. But handing out specific drug recommendations - WTF?!
I experienced the same thing when my American cousins were over last summer. Unsolicited and highly dangerous medical advice tossed out like a TV show recommendation.
EDIT: I realise I do not actually know the nationality of the previous poster, and that their statement referred solely to themselves, yet I still feel it is dangerous and will leave the original message intact.