I'm not expecting the second coming of Eddie Pope, but I do think that it's not too much to ask for him to at least attempt to mark the guy he's stood next to on a set piece.
I have recently discovered the wonders of putting ammonia on mosquito bites -- though, evidently, it doesn't work for everybody.
It denatures the proteins in the mosquito saliva -- or whatever it is. Sold commercially as "AfterBite," but apparently plain old ammonia works just as well.