As for the buzzing, a simple ceiling fan prevents you from hearing it. Not from being stinged, though... I got to know that during my student exchange to Brazil, and it seems like nothing could help; literally nothing. I took Vitamin B pills but got stinged no less. I used a kind of joss sticks that were supposed to keep them off - nothing but horrible reek.
But by the end of the year, I had become sort of immune to the itching; my immune system probably noticed that it didn't need to fight that anti-clotting stuff anymore, having learnt that when it fought scores of stings simultaneously. The highest number I counted was in the heighbourhood of 150, but I gave up then. Only thing that could probably have fought it is Autan
, but you don't get that over there...
Don't cry because it's over, smile because it happened.