File this under the usual "I didn't get it" but also under "I want one (or make that two)". To explain the ad, for Chateau Ainata, says "Lebanese and doesn't cause a headache" which immediately assumes anything Lebanese does cause one. If this is a double-entendre for their wine not causing headache, or competitors' wines doing so, not sure it is working. The silver lining is that their offer is 7 USD for 2 bottles which is extremely cheap mind you. So again, not sure about the headache part but quite sure about the offer.
PS - it has been pointed out to me that perhaps the headache in question is "financial" - meaning that this being a local wine it is cheaper for the consumer.